The /ʧ/ sound is spelled with <ch> or <tch>.
As /ʧ/ is fairly rare, only occurring in 2639 words in the dictionary, this was an easy list to work out manually. The contrast is not a source of difficulty.
The density value is 8.2%. The list makes 154 semantic distinctions, a loading of 71%.
arch are avouch avow avouched avowed avouching avowing beach be beach bee belch bell belched belled belching vbelling bench Ben birch burr bitched bit bleached bleat bortsch bore bunch bun capture capper captures cappers Chad ad chair air chairs airs chair heir chairs heirs chair e'er chair ere chair Ayr chairman airman chairmen airmen chalice Alice chalk auk chalks auks champ amp champs amps channel annal channels annals chant aunt chants aunts chap app chaps apps chapel apple chapels apples chaplet applet chaplets applets chapter apter char are char R chars R's charm arm charms arms charmed armed charming arming chart art charts arts Chartist artist Chartists artists chary airy charily airily chase ace chases aces chased aced chasing acing chaste aced chat at chaw awe chaws awes chawing awing chawed awed chaw or chaw ore chaws ores cheat eat cheats eats cheating eating cheek eke cheeks ekes cheer ear cheers ears cheery eery cheerily eerily cheerless earless cheese ease cheeses eases cheetah eater chess S chew Ooh chide eyed chill ill chills ills chimp imp chimps imps chin in chin inn chins inns chink ink chinks inks chit it choke oak chokes oaks choose ooze chooses oozes choosing oozing choosy oozy chose owes chop op chops ops chore awe chores awes chore or chore ore chores ores chow ow churl earl churls earls cinch sin coach co coached coat conch con couch cow couched cowed couching cowing crouched kraut etched ate filch fill filching filling filched filled finch fin future fewer grouched grout gulch gull H A Harwich Harry hatched hat haunch horn hitched hit HM a.m. hooch who HRH ARA inch in inch inn itched it latchkey lackey latchkeys lackeys leach lea leach lee leached leat leech lea leech lee lynched lint march mar marched mart matched mat mixture mixer mixtures mixers mooch moo mooched moot mulch mull mulching mulling niche knee notched not parch par parched part pasture passer patched pat paunch porn peach P peach pea peach pee peaching peeing peached peat peached Pete perch per perch purr perched pert picture picker pictures pickers picturing Pickering pinch pin pinching pinning pitched pit pleach plea porch paw porch pore porch pour pouched pout preach pre punch pun punched punt rapture rapper raptures rappers roach roe roach row scorch score scorched scored scorcher scorer scorchers scorers scotched Scot screech scree slouch slough starch star starched start teach tea teach tee teaching teeing tench ten torch tore trenched Trent twitched twit unhitched unhit vouch vow vouched vowed watched watt watched what wench wen wenched went winch win winching winning winches whinnies wrench wren
John Higgins, Shaftesbury, December 2010.