noun
A reply
A solution
A defense
verb
To reply
To be sufficient
To move in response
To provide a solution
answer implies saying, writing, or acting in return, as required by the situation or by courtesy to answer a letter, to answer the phone; respond implies an appropriate reaction, either in words or action, made voluntarily or spontaneously to that which serves as a stimulus to respond to an appeal; reply in its strictest application refers to an answer that directly or in detail satisfies a question, charge, etc.; retort suggests a reply, esp. one that is sharp or witty, provoked by a charge or criticism; rejoin implies an answer, originally to a reply, now often to an objection
See answer in American Heritage Dictionary 4 Synonyms
See answer in Webster's New World Roget's A-Z Thesaurus II
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