noun
(uncountable) Mental focus.
(countable) An action or remark expressing concern for or interest in someone or something, especially romantic interest.
(uncountable, military) A state of alertness in the standing position.
(uncountable, machine learning) A kind of prioritisation technique in neural networks that assigns soft weights between tokens from two (or more) input sequences in order to compute the required output.
interjection
(military) Used as a command to bring soldiers to the attention position.
A call for people to be quiet/stop doing what they are presently doing and pay heed to what they are to be told or shown.