二期 (èr jī) — second phase; second stage (of a multi-phase project, plan, clinical trial, etc.)

Definition

二期 (èr jī) marks the second phase in a planned, multi-stage project, treatment, or construction — distinct from 初期 ('initial phase') which marks the start. Written/formal register; used in project plans, clinical trials, and development contexts.

adjective
second phasesecond stage (of a multi-phase project, plan, clinical trial, etc.)

Examples

  • 二期。
    Zhè ge lóu pán èr jī de gōng chéng yǐ jīng kāi shǐ le.
    Construction of the second phase of this housing development has already begun.
  • 二期。
    Bìng rén xū yào jiē shòu èr jī zhì liáo.
    The patient needs to receive the second phase of treatment.
  • 二期。
    Wǒ men zhèng zài guī huà èr jī de xiàng mù nèi róng.
    We are currently planning the content of the second-phase project.

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.

二èrsecond
期qīphase

二 means second and 期 means phase or period; it refers to the next stage of a plan.

Characters in this word

An abstract idea shown by a mark or a diagram rather than by a picture of an object.

二 is drawn as two parallel strokes, where the number of strokes shows the amount.

Open 二 →

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
日日rì
Sound part声符shēngfú
其
其qí期qī
Same sound today

The original form paired 其 for its sound with 日 (sun). A related form changed that sun to 月, and this later developed into 期.

Open 期 →

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