Definitions
1.nounA shrill noise, especially made by a voice or bird; a yell, scream, or call.
2.nounA four-digit transponder code used by aircraft for identification or transmission of emergency signals.
3.nounAn issue or complaint related to aircraft maintenance.
4.nounThe American night heron.
5.nounA warning message indicating a possible error.
6.verbTo make a squawking noise; to yell, scream, or call out shrilly.
7.verbTo speak out; to protest.
8.verbTo report an infraction; to rat on or tattle; to disclose a secret.
9.verbTo produce a warning message, indicating a possible error.
10.verbTo set or transmit a four-digit transponder code. (Normally followed by the specific code in question.)
11.verbTo back out in a mean way.