an attention grabber
yes; yea; a word expressing assent, or an affirmative answer to a question.
a word used to acknowledge a command from a superior, usually preceded by a verbatim repeat-back.
An affirmative vote; one who votes in the affirmative.
Used to attract someone's attention.
To make such a call.
A short distance; hailing distance.
A long, loud call used to attract attention when at a distance, mainly done in the Australian bush.