(nautical) A temporary tackle attached to the tiller of a vessel during a storm.

(nautical) To change course or heading. / (figuratively, by extension) To take a different approach.

(computing theory) A data structure consisting of an original document and a series of insertions and deletions referring back to parts of the original or modified document, typically used to represent a series of edit operations on text.

(computing) A data structure used by a virtual memory implementation to store the mappings between physical and virtual addresses.

(intransitive, dated, slang) To pay one's tab and leave a bar. / (computing, graphical user interface) To press the Tab key and a modifier key to move between tabs or windows.

A medical procedure, often used to diagnose dysautonomia or syncope, in which the patient lies flat on a special table or bed and is monitored.

(graphical user interface) The sequence in which a user can navigate from one control to the next by pressing the Tab key.

plural of tab order

(Christianity) The table at which the Lord's Supper is held, or on which the elements are laid.

(figuratively) A status within a group that gives one sufficient authority to be taken seriously.