Senses
脱帽/ 脫帽 to take off one's hat
To remove one's hat, often as a sign of respect or courtesy; to doff one's hat.
脱帽/ 脫帽 bareheaded
Not wearing a hat; appearing without a hat, often used when describing requirements for official identification photos.
脱帽/ 脫帽 to surrender
To take off one's hat as a sign of surrender or submission in a historical context