a phrase, construction or expression, that may sometimes be grammatically peculiar by itself, that is recognised as a unit in the usage of a given language and has a meaning that differs from the literal meaning of its parts taken together; an idiom.

to answer; to reply; to respond.

to reflect the sound waves as to reproduce the sound; to echo.

to concur, support what another person has said.

something said or done in answer; a reply; response.

a sound reproduced by reflecting the sound waves.

to compare; to verify the similarities and differences; to tally.

a slender waist that can be encircled with one's hand.

a slow, gracious gait.