(intransitive, idiomatic) To prepare for an activity. / (intransitive, idiomatic) To put on special clothing or equipment.

Third-person singular simple present indicative form of gear up

present participle of gear up

simple past tense and past participle of gear up

(aviation) A landing of an aircraft with the landing gear retracted due to the pilot(s) forgetting to extend the gear or to take some other action necessary for the gear to deploy.

plural of gear-up landing