Definition
直径 (zhíjìng) is the standard word for 'diameter' in geometry and everyday measurement — the straight line through the center of a circle. 口径 (kǒujìng) is more specific: it refers to the diameter of a circular opening (like a pipe, gun barrel, or lens), and also has a figurative meaning of 'stance' or 'official line' that 直径 does not share.
noun
diameter
Easily confused
- 致敬zhì jìngsound-aliketo salute; to pay tribute to
Examples
- 直径。Qǐng cèliáng zhège yuánxíng zhuōmiàn de zhí jìng.Please measure the diameter of this round tabletop.
- 直径24.6。Biāozhǔn lánqiú de zhí jìng yuē wèi èrshísì diǎn liù límǐ.The diameter of a standard basketball is about 24.6 cm.
- 直径？Liǎng gè yuán de zhí jìng xiāngděng ma?Are the diameters of the two circles equal?
Browse more HSK 7-9 words or search the full 43,000-word dictionary.