chà / chā / chāi /
adjective HSK 1 #1,001

Meanings

  1. 1 bad
  2. 2 poor
  3. 3 to lack
  4. 4 short of

Examples

Tā de zhōngwén hěn chà.
His Chinese is very poor.
Chà wǔfēn zhōng dào sān diǎn.
It's five minutes to three o'clock.
Zhège dōngxi zhìliàng hěn chà.
This thing is of very poor quality.

Tips

mistakes
has four readings. As chà (4th tone) it means 'bad/lacking' — 中文 'Chinese is poor'. As chā (1st tone) it's the noun 'difference' (差异, 差距). As chāi it's 'errand/dispatch' (出差). Cī only survives inside 参差不齐.
grammar
For telling time, means 'short of': 十分 = 'ten minutes to three' (2:50).

Components

radical
gōng
work; tool
The radical at the bottom serves as the indexing handle and represents a measuring tool — a carpenter's square. Combined with the sheep above, the character pictures the act of measuring and grading livestock. The discrepancies revealed by such measuring became the abstract 'difference, lack.' Indexing radical.
semantic
yáng
sheep (compressed form)
The upper portion is a compressed (sheep) — head and horns visible. Combined with the (work/tool) component below, the original character depicted measuring or selecting sheep, comparing one to another. From 'comparing/sorting' came 'difference,' and from notice of inequality came 'poor, lacking.'

Stroke Order

chà