擦

frictional heat

grazing; touching lightly

squeezing (someone for money); percentage; kickback

abrasion; scratch

Linguistics

fricative; fricative consonant

rubbing; scrubbing; scraping

shoe sore; foot blister (caused by shoes)

Often pronounced ずれ as a suffix

chafing; sore; scrape; scratch; mark; rub; rubbing together; blister

Physics

frictional force

bedsore

scrubbing grime off (the skin)

cloth, sponge, etc. used to remove grime from the skin

wear from frequent handling

over-sophistication

Linguistics

sibilant; sibilant consonant

fire alarm ringing continuously to warn that a fire is extremely near

sound as produced by this alarm

sore crotch; sore thigh

Noun or participle which takes the aux. verb suru; Intransitive verb

chafing of the inner thighs

hulling rice

becoming worldly-wise (through one's interactions with other people); becoming sophisticated; losing one's innocence; losing one's naivety

rubbing an ointment into the skin

Physics

kinetic friction

saddle sore

stria (carved out by a glacier, etc.)

masturbation (male)

Linguistics

affricate; affricative

liniment; ointment; salve