Translation guide
The English word "plane" has several distinct meanings. This guide covers the most common ones for learners: aircraft, a flat surface in geometry, a tool for smoothing wood, and a level of existence or thought. It also notes the tree meaning, which is less common.
The most common meaning: a powered flying vehicle with fixed wings.
The standard word for airplane. Used in all contexts.
I will go to Tokyo by plane.
A plane is flying in the sky.
Specifically a passenger plane, often used in news or formal contexts.
The passenger plane landed safely.
A broader term for aircraft, including planes, helicopters, etc. Technical or formal.
Designing aircraft requires advanced technology.
In mathematics, a flat two-dimensional surface.
The standard term for a geometric plane.
Draw a line perpendicular to this plane.
A carpenter's tool used to shave wood to make it smooth.
The standard word for a wood plane. Often written in hiragana, but kanji is 鉋.
The carpenter is planing a board with a plane.
A level of reality, consciousness, or development, as in "a higher plane".
Often used for "plane" in a metaphysical or abstract sense, meaning dimension or level.
He seems to live on a different plane.
Refers to a state of mind or spiritual level, often used for artistic or philosophical planes.
A loanword from English, used casually for level or plane.
A type of tree, also called sycamore in some regions.
紙飛行機 (かみひこうき) means paper airplane. The word 飛行機 alone never means a paper plane.
飛行機 specifically means airplane (fixed-wing). 航空機 is a broader category including helicopters, gliders, etc. Use 飛行機 for everyday conversation.
His art has reached a high plane.
The conversation is on a completely different plane.