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Dictionary

Words, grammatical forms and meanings linked to the ontology.

on the fly en · ADV

Pronunciation

Meanings

  1. (not-comparable, of the ball) While in the air, without having touched the ground.
    • Jones caught the ball on the fly.
  2. (idiomatic, not-comparable) Spontaneously or extemporaneously; done as one goes, or during another activity.
    • The only process that yields problem-solving on the fly is experiential. 2026 April 9, Charles Hugh Smith, Automating Our Dependence Will Cripple Us:
    • The software program has a table of values for some results, but calculates others on the fly.
  3. (not-comparable, slang) On the move.
    • The Owl is flying high, frightening to the eye. The Rattler is nearby, Cool is on the fly. Danger is his business. 1966, “Cool McCool (theme song)”, Bernie Green (music) (Cool McCool (television series)), performed by Bob McFadden:

Forms

SpellingFeaturesLabelsSource
on-the-fly alternative lexicographic

Deriveds

OTFE · on-the-fly encryption

Hypernyms

dynamically

Relateds

fly by the seat of one's pants

Synonyms

on the wing · on the spot · in flight · in flight · on the hoof

Translations (38)

de spontan (spontaneously or extemporaneously) · da i farten (while in the air) · es a vuelo (spontaneously or extemporaneously) · fi lennosta (while in the air) · de auf die Schnelle (spontaneously or extemporaneously) · de fliegend (spontaneously or extemporaneously) · es al vuelo (spontaneously or extemporaneously) · ca al vol (while in the air) · fr à la volée (while in the air) · pt de improviso (spontaneously or extemporaneously) · tr uçarken (while in the air) · es sobre la marcha (spontaneously or extemporaneously) · pt sem sobressaltos (while in the air) · da i skyndingen (while in the air) · tr anında (spontaneously or extemporaneously) · pl w locie (while in the air) · de unvorbereitet (spontaneously or extemporaneously) · sv i flykten (spontaneously or extemporaneously) · pt no decorrer do processo (spontaneously or extemporaneously) · de ohne Vorbereitung (spontaneously or extemporaneously) · es al vuelo (while in the air) · pt durante o processo (spontaneously or extemporaneously) · sv på lyra (while in the air) · es a bote pronto (spontaneously or extemporaneously) · de in Eile (spontaneously or extemporaneously) · pt extemporaneamente (spontaneously or extemporaneously) · pl w locie (spontaneously or extemporaneously) · fr à la volée (spontaneously or extemporaneously) · fr sur le fly (spontaneously or extemporaneously) · tr hazırlıksız (spontaneously or extemporaneously) · fi lennosta (spontaneously or extemporaneously) · de improvisiert (spontaneously or extemporaneously) · pt no momento (spontaneously or extemporaneously) · sv i flykten (while in the air) · pt em tempo real (spontaneously or extemporaneously) · es a vuelapluma (spontaneously or extemporaneously) · ru на лету́ (spontaneously or extemporaneously) · ru на лету́ (while in the air)