(linguistics) To derive a word from another word (of a differing part of speech) without modification; to perform zero derivation.

Third-person singular simple present indicative form of zero-derive

To subject (a good) to no value-added tax when sold (but the supplier can still recover VAT attributable to it).

present participle of zero-rate

(military) Being or relating to a method whereby jet fighters and attack aircraft could be near-vertically launched using rocket motors to rapidly gain speed and altitude.

(US) Alternative spelling of kilometre zero

Of a ride-on lawnmower: designed so that it can pivot on the spot, instead of having a wide turning radius.

(machine learning, attributive) Performing without specialized training data.

Having zero cases of COVID-19. / A strategy designed or intended to eliminate or completely exclude COVID-19.

Third-person singular simple present indicative form of zero-rate