to make answer in words or writing; answer; respond: to reply to a question.
Definition: 2
to respond by some action, performance, etc.: to reply to the enemy's fire.
Definition: 3
to return a sound; echo; resound.
Definition: 4
Law. to answer a defendant's plea.
Definition: 5
to return as an answer (usually used in a negative combination or followed by a clause with that): Not a syllable did he reply. He replied that no one would go.