Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The cardinal number three hundred.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective being one hundred more than two hundred
Etymologies
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Examples
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T+L recently reported on a few other code words and slang terms pilots and flight crew may employ while on the job. “Angel” and “Code 300” are used by some airlines and aviation companies to communicate that there’s a medical emergency onboard.
What Does Code ‘Mermaid’ Mean on a Plane? Travel + Leisure Editorial Guidelines 2026
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