How to say "takeoff" in Japanese

• 離陸りりくCommon
  noun, suru verb, intransitive verbThe takeoff of an aircraft — the moment a plane leaves the ground and becomes airborne. This is the word you want for the aviation sense of 'takeoff'.
  ２２６便びんは１０時じ３０分ふんに離陸りりくします。↗

  Flight 226 takes off at 10:30.
• 発進はっしんCommon
  noun, suru verb, intransitive verbA departure from a base or a launch — the moment something sets out. It can cover 'takeoff' in that launch sense, though 離陸 is the word for a plane's actual liftoff.
• 出航しゅっこうCommon
  noun, suru verb, intransitive verbA boat's or plane's departure — leaving port, setting sail, putting out to sea. For 'takeoff' it is seldom the word you want; it is really a departure from port, and 離陸 covers a plane's liftoff.
  その船ふねは出航しゅっこうしようとしている。↗

  The ship is about to set sail.

Use 離陸 for an aircraft's takeoff; 発進 for a launch or departure from a base; 出航 is a boat's or plane's departure from port, so it suits setting out rather than the takeoff itself.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 離陸りりくtakeoff
• 発進はっしんdeparture (from a base)
• 出航しゅっこうdeparture (of a boat, plane)
• サッツtakeoff (in ski jumping)