Third-person singular simple present indicative form of sub

simple past tense and past participle of sub

simple past tense and past participle of sub in

Third-person singular simple present indicative form of sub in

present participle of sub in

plural of subbing

In secret or covertly; privately, confidentially.

Carried out secretly or confidentially.

(slang, in workers’ compensation cases) Covert surveillance video used to catch workers’ compensation applicants and show that they are in fact not injured.

(UK) A commissioned officer of the Royal Navy ranking above a midshipman and below a lieutenant.