1. (v. i.) To make a return in words or writing; to respond; to answer.

2. (v. i.) To answer a defendant's plea.

3. (v. i.) Figuratively, to do something in return for something done; as, to reply to a signal; to reply to the fire of a battery.

4. (v. t.) To return for an answer.

5. (v. i.) That which is said, written, or done in answer to what is said, written, or done by another; an answer; a response.

ESP acknowledge acknowledgment action and reaction advocate allege in support answer answer back answering antiphon approach argue for argument assert automatic reaction autonomic reaction back answer back talk backchat billet boomerang bounceback business letter champion chit come back come back at come in comeback commerce communicate with communication communion congress connection contact contend for conversation converse correspond correspondence counter counterblast counterblow counterstatement counterstroke dealing dealings defend defense demurrer denial dispatch echo epistle espouse establish connection evasive reply exception exchange favor flash back get to give acknowledgment give answer give-and-take information interaction interchange intercommunication intercommunion intercourse interplay interrogate letter line linguistic intercourse maintain maintain connection make a plea make advances make contact with make overtures make up to message missive note objection plea plead for pleading predictable response question raise reach react reaction ready reply rebut rebuttal receipt reciprocation recoil reecho reflection reflex reflex action refluence reflux refutation refute rejoin rejoinder relate to repartee replication reply to repost rescript rescription respond respond to respondence response responsion responsory retaliation retort retroaction return return answer return for answer reverberate reverberation revulsion riposte rise say say in defense say in reply shoot back short answer snap back snappy comeback social intercourse speak for speak up for speaking special demurrer special pleading speech speech circuit speech situation stand up for statement of defense stick up for support sustain take the bait talk back talking telepathy touch traffic truck two-way communication unthinking response uphold urge reasons for witty reply witty retort yes-and-no answer