(computing) A small program that initiates the bootstrap process by loading the operating system proper.

(rare in the singular) One of a pair of Wellington boots.

Alternative spelling of boottree

(computing) A dedicated sector, usually at the beginning (first sector on first track) of a storage medium, that holds special data used to start a system.

(computing) A dedicated block usually at the beginning (first block on first track) of a storage medium that holds special data used to start a system. Some systems use a boot block of several physical sectors, while some use only one boot sector. Other manufacturers use the terms boot block and boot sector interchangeably.

A knife, usually with a fixed double-edged blade, that is carried inside a sheath or attached to a boot.

Alternative spelling of boot cut

Alternative spelling of boot cut

Pants cut as if to allow the legs to fit over boots.

(clothing) Of pants (trousers), cut as if to allow the legs of the pants to fit over boots.