(baseball) A shift in the defensive alignment of the infielders towards home plate when there is a baserunner on first base, to increase the possibility of getting a double play.

Thorough; comprehensive.

In photography, the distance in front of and behind the subject that appears to be in focus.

(literally) In water so deep that one cannot stand and may be at risk of drowning. / (figuratively, idiomatic) In a situation which one is poorly prepared or unprepared to handle.

(geology) The depth below the Earth's surface of the hypocentre of an earthquake. / (optics) The field of view of a camera that is in sharp focus.

Having no depth, or having a depth that is impossible to determine

(pharmacology) A particular antihistamine drug with anticholinergic properties.

Alternative spelling of bit depth

(computer graphics) The number of bits (binary digits) used to represent the colour of a single pixel.

plural of focal depth