noun
Used in specific compounds and set phrases, such as 頭が高い (arrogant, haughty). Not the general word for 'head' (which is あたま).
See also: 頭が高い
「頭が高い」という表現は、態度が横柄なことを意味する。
The expression 頭が高い means that someone's attitude is arrogant.
Another reading meaning 'head' or 'leader', also used in specific contexts.
The reading ず is a Sino-Japanese reading (on'yomi) of the kanji 頭. It is not productive in modern Japanese outside of a few fixed expressions.