The consonant /p/ occurs in initial, medial and final environments, and enters freely into clusters. This accounts for the size of this list. There are a number of cases of multiple pairings such as lea/leap and lea/plea.
Interesting pairs include:
annals panels
arrest oppressed
attrition patrician
latitude platitude
concession conception
tenancies tenpences
Notice, however, that tenancies/tenpences would not be minimal in rapid speech since the /n/ of tenpences would be assimilated to /m/.
The list makes 579 semantic distinctions, giving a loading of 63%.
act packed act pact acts pacts ad pad ads pads add pad added padded adding padding adds pads addition perdition addle paddle addled paddled addles paddles addling paddling adze pads aeon paean aeons paeans aeon peon aeons peons affect perfect affected perfected affecting perfecting affection perfection affects perfects ah pa ah pah ah par ah parr Al alp Al apple Al pal Ali pally Alice palace all pall all Paul all pawl Allah pallor alley pally alms palms Alnwick panic altar palter altars palters alter palter altered paltered altering paltering alters palters am amp am Pam amah palmer amahs palmers amah Parma an pan and panned anger panga angers pangas Ann pan annals panels ant pant ants pants antes panties anther panther anthers panthers any penny arable parable arc park arch parch arched parched arches parches arching parching arcs parks are pa are pah are par ares pars are parr ares parrs ares parse arid parried ark park arks parks arm palm armed palmed arming palming arms palms armour palmer armour Parma army palmy arrest oppressed arse pass arses passes arson parson art part Art part article particle articles particles artisan partisan artisans partisans arts parts arty party ascent percent ashen passion ass apse ass asp assent percent assertion aspersion assertions aspersions asses apses assist persist assistance persistence assistant persistent assisted persisted assisting persisting assists persists aster pasta Aston pastern at apt at pat ate pet attar apter attar patter attitude aptitude attitudes aptitudes attrition patrician aught port auk pork averse perverse aversion perversion aversions perversions avert pervert averted perverted averting perverting averts perverts awe paw awed pawed awes paws awing pawing awe pore awed pored awes pores awe pour awed poured awes pours awes pause awl pall awls palls awl Paul awl pawl awls pawls awning pawning axe packs axe pax axes paxes B beep be beep bee beep Bella Belper Bert burped bleat bleeped bliss blips bum bump bumming bumping bur burp burr burp C seep cam camp car carp Carl carpal cart carped cat capped catcher capture catchers captures catcher catchup caw Corp cease seeps cede speed ceded speeded cedes speeds ceding speeding cell sepal cells sepals cell spell cells spells cellar speller cellars spellers cent spent cert spurt certs spurts chat chapped chatter chapter chatters chapters cheat cheeped chit chipped choral corporal Chris crisp chum chump cirrus syrups clam clamp clamming clamping class clasp classed clasped classing clasping coarse corpse commute compute commuted computed commuter computer commuters computers commutes computes commuting computing concession conception concessions conceptions coo coop cooing cooping coot cooped core Corp corps Corp corse corpse corses corpses cos cops cos copse cot copped cot Copt cots Copts coup coop course corpse courses corpses cram cramp cramming cramping crass craps crease creeps crew croup critic cryptic critically cryptically cross crops cull couple culled coupled culling coupling culls couples cuss cups cuss cusp cut cupped D deep dam damp damming damping damn damp damning damping death depth deaths depths deist deepest delete deplete deleted depleted deletes depletes deleting depleting deletion depletion deuce dupes dew dupe dollar dollop dolour dollop drew droop drew drupe dross drops due dupe dumb dump dumber dumper dummy dumpy E P E pea E pee each peach Ealing pealing Ealing peeling earl pearl earls pearls earl purl earls purls early pearly earliest pearliest earth Perth ease peas ease pease ease pees ease P's east pieced eat peat eat Pete eater peter eaters peters eaves peeves EC PC eel peal eels peals eel peel eels peels egg peg egged pegged egging pegging eggs pegs eke peak eked peaked ekes peaks eking peaking eke peek eked peeked ekes peeks eking peeking eke peke ekes pekes eke pique eked piqued ekes piques eking piquing eking Peking elf pelf emend impend emended impended emending impending emends impends emulsion impulsion emulsions impulsions end penned ending pending eon paean eons paeans eon peon eons peons err per err purr erred purred erring purring errs purrs Erse purse E's peas E's pease E's pees E's P's Esther pester eve peeve eves peeves ewe pew ewes pews excel expel excelled expelled excelling expelling excels expels filly fillip filly Philip flat flapped flit flipped floss flops fosse fops G jeep gas gaps gee jeep ghat gawped gnat knapped gnat napped gore gawp gorse gawps grass grasp grassed grasped grassing grasping grease grippes Greece grippes grew group grit gripped gull gulp gulling gulping ha harp Halle haply hammer hamper hammered hampered hammering hampering hammers hampers hart harped hat happed he heap heart harped heat heaped hell help hem hemp hiss hips Hoo hoop Hoo whoop hoot hooped hoot whooped hot hopped hum hump humming humping ill pill ills pills immune impugn immunity impunity in pin Inc pink inch pinch inched pinched inches pinches inching pinching ink pink inked pinked inking pinking inks pinks inn pin inning pinning inns pins ins pins insect inspect insects inspects intercession interception intercessions interceptions irk perk irked perked irking perking irks perks it pit its pits it's pits itch pitch itched pitched itches pitches itching pitching Julie julep key keep keying keeping kiss kips kit kipped knee neap knit nipped lad plaid lads plaids lakh plaque lakhs plaques lam lamp lamb lamp land planned lank plank lark plaque larks plaques lash plash lashed plashed lashes plashes lashing plashing lass laps lass lapse lasses lapses lat lapped lat plait latitude platitude latitudes platitudes latter platter lea leap lea plea leach pleach leached pleached leaches pleaches leaching pleaching lead plead leading pleading leads pleads lead pled leas pleas leas please lease leaps led pled ledge pledge ledges pledges lee leap lee plea leech pleach leeches pleaches Leeds pleads lees pleas lees please Leigh leap Leigh plea leisure pleasure let leapt lied leaped lied pleat lieu loop limb limp limit limpet limits limpets limn limp limning limping list lisped lit lipped Lodz plods loo loop loom plume loomed plumed looming pluming looms plumes loose loops loot looped loss lops lot lopped lot plot lots plots Louis loopy lover plover lovers plovers luck pluck luckiest pluckiest luckily pluckily lucky plucky lug plug lugged plugged lugging plugging lugs plugs lumme lumpy lumme plummy lunge plunge lunged plunged lunges plunges lunging plunging lush plush lusher plusher lushest plushest lute looped luxe plucks Lymm limp marl Marple mass maps mat mapped matt mapped moss mops N pen N's pens Nat knapped Nat napped Nice neaps niece neaps nil nipple nit nipped oar paw oars paws oar pore oars pores oar pour oars pours oars pause Oct pocked odd pod odds pods o'er paw o'er pore o'er pour Ollie Polly Ollie poly Ollie polyp omit permit omits permits omitted permitted omitting permitting omission permission oodles poodles or paw or pore or pour ore paw ores paws ore pore ores pores ore pour ores pours ores pause Ossett posset otter potter otters potters ought port ox pocks ox pox Phyllis fillips pseud spewed quay keep quit quipped R pa R pah R par R parr ram pram rams prams ram ramp ramming ramping rank prank ranks pranks rat rapped rat rapt rat wrapped rattle prattle rattled prattled rattler prattler rattlers prattlers rattles prattles rattling prattling RC Parsee re- pre- re reap reach preach reached preached reaches preaches reaching preaching recast precast recede precede receded preceded recedes precedes receding preceding recession precession recessions precessions recession reception recessions receptions recondition precondition reconditioned preconditioned reconditions preconditions record ripcord records ripcords refer prefer reference preference references preferences referential preferential referred preferred referring preferring refers prefers regnant pregnant res Pres resent present resented presented resenting presenting resents presents reserve preserve reserved preserved reserves preserves reserving preserving resident president residences presidencies residency presidency residential presidential residents presidents rest pressed resume presume resumed presumed resumes presumes resuming presuming retention pretension rhomb prom rhombs proms rhomb romp Rhyl ripple rick prick ricked pricked ricking pricking ricks pricks rig prig rigs prigs rill ripple rills ripples rim prim rimmed primmed rimming primming rims prims rink prink rinks prinks rinse prince rinses princes risen prison Rita praetor rivet privet rocks prox rocs prox rod prod rods prods rood prude roods prudes roof proof roofed proofed roofing proofing roofs proofs R's parrs R's pars R's parse rude prude rue Pru rued prude rum rump rune prune runes prunes said sped Sam spam sand spanned sank spank sans spans sat sapped sat spat satyr spatter satyrs spatters saw spore saws spores sawn spawn scar scarp scent spent scholar scollop scoot scooped sea seep seat seeped sec spec secs specs sec speck secs specks sect specked sector spectre sectors spectres see seep seeing seeping seed speed seeded speeded seediest speediest seedily speedily seeding speeding seeds speeds seedy speedy seek speak seeker speaker seekers speakers seeking speaking seeks speaks sell sepal sells sepals sell spell selling spelling sells spells seller speller sellers spellers send spend sender spender senders spenders sending spending sent spent set Sept sett Sept setter sceptre setters sceptres sex specks sex specs shah sharp she sheep she'll spiel shield spieled shit shipped shot shopped sic spick sick spick sieve spiv sieves spivs Sikh speak Sikhs speaks sill spill sills spills silt spilt simmer simper simmered simpered simmering simpering simmers simpers sin spin sinning spinning sins spins Sioux soup sir spur sirs spurs sirrah syrup sit sipped sit spit sits spits sitting spitting skim skimp skimming skimping skit skipped slash splash slashed splashed slashes splashes slashing splashing slat slapped slender splendour slew sloop slit slipped slit split slits splits slitting splitting slosh splosh sloshed sploshed sloshes sploshes sloshing sploshing slot slopped sluice sloops slum slump slumming slumping soar spore soars spores solecism solipsism some sump son spun soon spoon sore spore sores spores sort sport sorted sported sorting sporting sorts sports sot sopped sot spot sots spots sou soup sought sport steal steeple steals steeples steel steeple steels steeples steely steeply stele steeply stet stepped still stipple stilled stippled stilling stippling stills stipples suds spuds Sue soup sue spew sued spewed sues spews suing spewing suit souped sum sump sun spun sunk spunk surd spurred suss sups swat swapped sweat swept tat tapped tenancies tenpences terse turps thumb thump thumbing thumping till tipple tilled tippled tilling tippling tills tipples tiller tippler tillers tipplers tit tipped toss tops tot topped tourney turnip tram tramp trill triple trilled tripled trilling tripling trills triples truce troops truce troupes true troop true troupe truer trooper truer trouper truing trooping 'twere twerp U pew U's pews ugh per ugh purr urge purge urged purged urges purges urging purging use pews use puce utter putter uttered puttered uttering puttering utters putters Wallace wallops wallah wallop war warp wart warped watt whopped we weep wee weep weeing weeping well whelp welling whelping welt whelped wet wept what whopped whet wept whit whipped who hoop who whoop wit whipped wore warp wot whopped wrest pressed wrick prick wricked pricked wricking pricking wricks pricks writ ripped wrong prong wronged pronged wrongs prongs X pecks yell yelp yelling yelping yew pew yews pews you pew you'll pule yule pule