(transitive) To place within a fluid (generally a liquid, but also a gas). / (transitive) To involve or engage deeply. / (transitive, mathematics) To map into an immersion.

(obsolete) Immersed; buried; sunk.

The act of immigrating; the passing or coming into a country of which one is not native born for the purpose of permanent residence.

The image-making power of the mind; the act of mentally creating or reproducing an object not previously perceived; the ability to create such images.

Existing only in the imagination. / (mathematics, of a number) Having no real part; that part of a complex number which is a multiple of √ (called imaginary unit).

Imagination; fancy. / (mathematics) An imaginary quantity.

not mobile, not movable / fixed, unable to be moved

Having no blemish or stain; clean, clear, pure, spotless, undefiled. / (zoology) Lacking blotches, spots, or other markings; spotless, unspotted.

(transitive) To form a mental image of something; to envision or create something in one's mind. / (transitive) To believe in something created by one's own mind. / (transitive) to assume

(fandom slang) A short fanfic or prompt placing a reader insert in a novel scenario with a character or celebrity.