sonic, transonic
(adjective) (of speed) having or caused by speed approximately equal to that of sound in air at sea level; “a sonic boom”
Source: WordNet® 3.1
transonic (not comparable)
Just below, or just above the speed of sound (0.8 < Ma < 1.2 approximately).
Passing from subsonic to supersonic, or vice versa.
• plasmasonic
• hypersonic
• supersonic
• subsonic
• consarn it, consarnit, constrain, introscan, non-racist, nonracist
Source: Wiktionary
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
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