cai4 tau4齊頭齐头

Jyutpingcai4 tau4

Yalechàih tàuh

形容詞Uncommon

Definition

Rounded to a neat, even number, especially of a sum of money to simplify change or make it auspicious.

colloquialmoney

How it's used

Rounding down is the most common intent when using this term in a market or casual setting. It implies a mutual agreement to simplify the transaction, often creating a sense of generosity or efficiency. It is almost exclusively used in contexts involving money or quantities that can be easily adjusted to a multiple of ten.

Examples

le1呢gin2件saam1衫gau2九sap6十ji2二man1蚊，bat1不jyu4如cai4齊tau4頭sau1收gau2九sap6十laa1啦。

This shirt is 92 dollars, why not round it down to 90?

ngo5我dei6哋gaap3夾cin2錢sik6食faan6飯，bat1不jyu4如cai4齊tau4頭mui5每jan4人bei3畀jat1一baak3百man1蚊。

Let's split the bill, let's round it to 100 dollars each.

Common phrases

cai4齊tau4頭sou3數

a round number

cai4齊tau4頭bei3畀

to pay a rounded amount

Common mistake

Do not confuse this with the concept of rounding in mathematics, which follows strict rules like rounding up at five. 齊頭 is a social negotiation tool, not a precise calculation, and it usually implies rounding down to favor the buyer or simplify the exchange.