时效 (shí xiào) — period of effectiveness; validity period; (law) statute of limitations; prescriptive period; (metallurgy) aging; age-hardening treatment

Definition

noun
period of effectivenessvalidity period(law) statute of limitationsprescriptive period(metallurgy) agingage-hardening treatment

Examples

  • ,时效。
    Zhè fèn hé tong de yǒu xiào qī wèi sān nián, yǐ jīng guò le shí xiào.
    The validity period of this contract is three years, and it has already expired.
  • 时效。
    Fǎ lǜ guī dìng de shí xiào shì liǎng nián.
    The statute of limitations prescribed by law is two years.
  • 时效。
    shí xiào Chǔ lǐ néng shǐ jīn shǔ biàn yìng.
    Aging treatment can harden metal.

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.

效xiàoeffect

The idea of 时 and 效 names the period during which something remains effective.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 時; 时 is its simplified writing.

Meaning part形符xíngfú
日日rìsun; day
Sound part声符shēngfú
之
之zhī時shí
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 時 pairs 日 (sun/day) with 之 as the part that gives the sound; the simplified 时 is not the form described.

Open 时 →

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
攵Written in full as攴pūto strike; action
Sound part声符shēngfú
交
交jiāo效xiào
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

效 pairs 攵 (written in full as 攴), meaning “to strike; action,” with 交, which gives the sound.

Open 效 →

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