Definitions
1.NounA shrill noise, especially made by a voice or bird. If made by a bird, it typically signals discomfort or anger; a yell, scream, or call.
2.NounA four-digit transponder code used by aircraft for identification or transmission of emergency signals.
3.NounA complaint or objection.
4.NounAn issue or complaint related to aircraft maintenance.
5.NounThe American night heron.
6.NounA warning message indicating a possible error.
7.VerbTo make a squawking noise; to yell, scream, or call out shrilly.
8.VerbTo speak out; to protest.
9.VerbTo report an infraction; to rat on or tattle; to disclose a secret.
10.VerbTo produce a warning message, indicating a possible error.
11.VerbTo set or transmit a four-digit transponder code. (Normally followed by the specific code in question.)"After discovering that the hydraulic system is faulty, the pilots squawked 7700 and declared mayday."
12.VerbTo back out in a mean way.