具有 / 拥有 / 含有【jùyǒu / yōngyǒu / hányǒu】

具有, 拥有 and 含有 each replace 有 in written Chinese. 具有 takes a quality, 拥有 takes something owned, and 含有 takes something inside.

具有 – qualities

The object of 具有 is abstract: 意义, 特点, 能力, 优势, 作用. It usually carries a modifier – 重要的, 很大的, 自己的 – and rarely stands bare.

拥有 – ownership

拥有 says something belongs to you, usually something large or valued: land, a company, a population, many users. It also takes a few positive abstractions – 自由, 梦想, 幸福 – treated as possessions.

含有 – contents

含有 says something is contained in something else: an ingredient in food, a substance in water. With 意思 it says a meaning is implied rather than stated.

Where the three don't swap

A quality is not owned, and an ingredient is not a quality. Everyday possessions take plain 有.

• × 他具有一辆车 → 他有一辆车
• × 这种水果拥有很多维生素 → 这种水果含有很多维生素
• × 这本书拥有重要的意义 → 这本书具有重要的意义