influence - a cognitive factor that tends to have an effect on what you do; "her wishes had a great influence on his thinking"

dimple - a small natural hollow in the cheek or chin; "His dimple appeared whenever he smiled"

concave shape, concavity, incurvation, incurvature - a shape that curves or bends inward

groove, channel - a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record)

dimple - any slight depression in a surface; "there are approximately 336 dimples on a golf ball"

dip - a depression in an otherwise level surface; "there was a dip in the road"

incision, prick, scratch, dent, slit - a depression scratched or carved into a surface

droop, sag - a shape that sags; "there was a sag in the chair seat"

crinkle, wrinkle, furrow, crease, seam, line - a slight depression in the smoothness of a surface; "his face has many lines"; "ironing gets rid of most wrinkles"

cranny, crevice, fissure, chap, crack - a long narrow depression in a surface

identification - evidence of identity; something that identifies a person or thing

stamp, impression - a symbol that is the result of printing; "he put his stamp on the envelope"

device - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"

impression - (dentistry) an imprint of the teeth and gums in wax or plaster; "the dentist took an impression for use in preparing an inlay"

act upon, influence, work - have and exert influence or effect; "The artist's work influenced the young painter"; "She worked on her friends to support the political candidate"

change surface - undergo or cause to undergo a change in the surface

stamp - to mark, or produce an imprint in or on something; "a man whose name is permanently stamped on our maps"

boss, emboss, stamp - raise in a relief; "embossed stationary"