echo

A reflected sound that is heard again by its initial observer.

An utterance repeating what has just been said.

(poetry) A device in verse in which a line ends with a word which recalls the sound of the last word of the preceding line.

(figuratively) Sympathetic recognition; response; answer.

(computing) The displaying on the command line of the command that has just been executed.

(computing) An individual discussion forum using the echomail system.

(international standards) Alternative letter-case form of Echo from the NATO/ICAO Phonetic Alphabet.

(whist, bridge) A signal, played in the same manner as a trump signal, made by a player who holds four or more trumps (or, as played by some, exactly three trumps) and whose partner has led trumps or signalled for trumps.

(whist, bridge) A signal showing the number held of a plain suit when a high card in that suit is led by one's partner.

An antisemitic punctuation symbol or marking, ((( ))), placed around a name or phrase to indicate the person is Jewish or the entity is controlled by Jewish people.

(medicine, colloquial, uncountable) Clipping of echocardiography.

(medicine, colloquial, countable) Clipping of echocardiogram.