Third-person singular simple present indicative form of subitize

(transitive, intransitive, psychology) To judge (the number of objects in a group) rapidly, accurately and confidently without counting them.

(psychology) The process of, or act of, glancing at a group of a few objects and knowing how many there are without actually counting.

present participle of subitize

simple past tense and past participle of subitize

plural of subitive

(Uralic linguistics, of verbs) Characterizing verbs or verbal affixes denoting actions that occur suddenly or sharply.

(Uralic linguistics) A verbal form denoting an action that occurs suddenly or sharply.

One who subitizes.

plural of subitizer