- (uncountable) A rock of crystalline limestone.
- Open thy marble jaws, O tomb / And hide me, earth, in thy dark womb."George Frederic Handel, Jeptha
- (countable) A small spherical ball of rock or glass used in children's games.
- (obsolete) The womb. The concept of an enclosure is common to many of the other uses of .
- (biology) The material or tissue in which more specialized structures are embedded.
- (biology) An extracellular matrix, the material or tissue between the cells of animals or plants.
- (biology) Part of the mitochondrion.
- (biology) The medium in which bacterium, bacteria are cultured.
- (mathematics) A rectangular arrangement of numbers or terms having various uses such as transforming coordinates in geometry, solving system of linear equations, systems of linear equations in linear algebra and representing graphs in graph theory.
- (computing) A two-dimensional array.
- A table of data.
- (geology) A geological matrix, the outer material of a rock consisting of larger grains embedded in a material consisting of smaller ones.
- (archaeology) The sediment surrounding and including the artifacts, features, and other materials at a site.
- (analytical chemistry) The environment from which a given sample is taken.
- (music) One of several ancient scales, one of which corresponds to the modern major scale and one to the harmonic minor scale
- A particular means of accomplishing something.
- What was the mode of entry?
- (statistics) A value occurring most frequently in a distribution
- (context, mathematics, physics) A state of a system that is represented by an eigenfunction of that system.
- (computing) One of various related sets of rules for processing data.
- In insert mode, characters typed are directly inserted into the buffer