飞行日 (fēi xíng rì) — flight day (a day designated for flying, e.g., in aviation or space missions)

Definition

A specific day scheduled for a flight, test flight, or space mission — not just any day an aircraft happens to fly. Borrowed from technical/military/aviation contexts and used for planned flying operations.

noun
flight day (a day designated for flying, e.g., in aviation or space missions)
Measure word · 个

Examples

  • 飞行日，？
    Jīn tiān shì wǒ men de fēi xíng rì, dà jiā zhǔn bèi hǎo le ma?
    Today is our flight day; is everyone ready?
  • 飞行日，。
    fēi xíng rì De tiān qì hěn hǎo, shì hé qǐ fēi.
    The weather on flight day is great, suitable for takeoff.
  • 飞行日。
    Tā men jì huà zài fēi xíng rì jìn xíng liǎng cì shì fēi.
    They plan to conduct two test flights on flight day.

Origin

Compound word
构词法gòucífǎ
偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

飞行flying
飞fēifly行xíngmove
联合Side by side
日rìday

飞行 gives flying or flight, and 日 gives day, meaning a day for flying.

Characters in this word

A drawing of the thing itself, worn down over three thousand years into a few strokes.

This origin belongs to the traditional form 飛; 飞 is its simplified writing.

For 飞, the traditional form 飛 pictures a bird flying upwards.

Open 飞 →

Two or more meaningful parts placed together so that their meanings combine into a new one.

  • 彳彳chì
  • 亍亍chù

The shape of 行 originally showed a street intersection, even on both sides. Later it became uneven, with 彳 on the left and 亍 on the right.

Open 行 →

A drawing of the thing itself, worn down over three thousand years into a few strokes.

日 originally drew the sun. A mark was added inside to tell it apart from similar square shapes.

Open 日 →

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