Synonyms of the word

absence

• n. A state of being away or withdrawn from a place or from companionship; the period of being away.
• n. Failure to be present where one is expected, wanted, or needed; nonattendance; deficiency.
• n. Lack; deficiency; nonexistence.
• n. Inattention to things present; abstraction (of mind).
• n. (medicine) Temporary loss or disruption of consciousness, with sudden onset and recovery, and common in…
• n. (fencing) Lack of contact between blades.

deficiency

• n. (uncountable) Inadequacy or incompleteness.
• n. (countable) An insufficiency, especially of something essential to health.
• n. (geometry) The amount by which the number of double points on a curve is short of the maximum for curves…
• n. (geometry) The codimension of a linear system in the corresponding complete linear system.

epilepsy

• n. (pathology) A medical condition in which the sufferer experiences seizures (or convulsions) and blackouts.

interval

• n. A distance in space.
• n. A period of time.
• n. (music) The difference (a ratio or logarithmic measure) in pitch between two notes, often referring to…
• n. (mathematics) A connected section of the real line which may be empty or have a length of zero.
• n. (chiefly Britain) An intermission.
• n. (sports) half time, a scheduled intermission between the periods of play.
• n. (cricket) Either of the two breaks, at lunch and tea, between the three sessions of a day's play.

lack

• n. (obsolete) A defect or failing; moral or spiritual degeneracy.
• n. A deficiency or need (of something desirable or necessary); an absence, want.
• v. (transitive) To be without, to need, to require.
• v. (intransitive) To be short (of or for something).
• v. (intransitive) To be in want.
• v. (obsolete) To see the ‘lack’ in (someone or something); to find fault with, to malign, reproach.

nonattendance

• n. A failure to attend; nonappearance.

want

• v. (transitive) To wish for or to desire (something).
• v. (intransitive, now dated) To be lacking, not to exist.
• v. (transitive) To lack, not to have (something).
• v. (transitive, colloquially with verbal noun as object) To be in need of; to require (something).
• v. (intransitive, dated) To be in a state of destitution; to be needy; to lack.
• n. (countable) A desire, wish, longing.
• n. (countable, often followed by of) Lack, absence.
• n. (uncountable) Poverty.
• n. Something needed or desired; a thing of which the loss is felt.
• n. (Britain, mining) A depression in coal strata, hollowed out before the subsequent deposition took place.