hình - Wiktionary, the free dictionary

From Wiktionary, the free dictionary

Sino-Vietnamese word from 形.

• (Hà Nội) IPA^(key): [hïŋ˨˩]
• (Huế) IPA^(key): [hɨn˦˩]
• (Saigon) IPA^(key): [hɨn˨˩]

(classifier tấm, bức) hình

1. image
2. a figure or a silhouette
3. (Southern Vietnam) a photo; a picture

   Synonym: ảnh

4. (geometry) a shape
5. Clipping of hình học (“geometry”).

• In 2D geometry, hình refers to "shape". In 3D geometry, it also refers to the surfaces of solids, especially when calculating their surface areas rather than their volumes whereby khối (“solid”) is used. For example, you calculate the surface area of a hình cầu, but you calculate the volume of a khối cầu, even though both of those terms can simply be translated as "sphere".