be constantly or visibly anxious

she fretted about the cost of groceries

gradually wear away (something) by rubbing or gnawing

the bay's black waves fret the seafront

flow or move in small waves

squelchy clay that fretted between his toes

decorate with fretwork

a botanically inspired ornamental pattern frets the ceiling

play (a note on a stringed instrument) while pressing the string down against a fret

most people would play this by fretting the G string on the first fret with the first finger

provide (a stringed instrument) with frets