Rare standalone noun; typically appears in classical or literary contexts, often as part of compounds like 匿う (かくまう) or 隠匿 (いんとく).
In old documents, 匿 can mean a hiding place.
anonymity; pseudonymity
hiding; concealment
concealment; sheltering; harboring
anonymous and fluid criminal group
diving under cover and hiding; concealing oneself
The character 匿 originally depicts a person hiding inside a box or enclosure, conveying the idea of concealment. The Japanese reading とく is the on'yomi, used in compounds.