The act or process of intensifying, or of making more intense.

Pertaining to, or performed by, the intellect; mental or cognitive.

An intelligent, learned person, especially one who discourses about learned matters. / (archaic) The intellect or understanding; mental powers or faculties.

The place where water, air or other fluid is taken into a pipe or conduit; opposed to outlet. / The beginning of a contraction or narrowing in a tube or cylinder. / The quantity taken in.

To take in or draw in; to bring in from outside.

(transitive, intransitive, usually followed by the particle "to") To fix the mind upon (something, or something to be accomplished); be intent upon

Strained; tightly drawn. / Strict, very close or earnest. / Extreme in degree; excessive. / Extreme in size or strength. / Stressful and tiring. / Very severe. / Very emotional or passionate.

The act or process of making whole or entire. / The process of combining with compatible elements in order to incorporate them.

(transitive) To render more intense / (intransitive) To become intense, or more intense; to act with increasing power or energy.

The quality of being intense. / The degree of strength. / (physics) Time-averaged energy flux (the ratio of average power to the area through which the power "flows"); irradiance.