pinyin: wéi, one of the Chinese family names

Chinese phrase: 韦 wéi - leather, tanned animal skin

Examples:
违
pinyin: wéi
Chinese phrase: 违反 wéi fǎn - disobey, violate
违法 wéi fǎ - break the law, be illegal

围
pinyin: wéi, meaning: enclose, surround
Chinese phrase: 包围 bāo wéi - surround, encircle
围巾 wéi jīn - scarf, shawl

伟
pinyin: wěi, meaning: great,
Chinese phrase: 伟大 wěi dà - great
伟人 wěi rén - a great man