noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Initialism of traffic (alert and) collision avoidance system, a system for warning pilots of impending mid-air collisions and telling them what (if any) evasive action to take. abbreviation, alt-of, initialism, uncountable, usually
2. 2
   plural of TCA form-of, plural

Synonyms

All synonyms

acasacas

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.