(grammar) A subclass of perfective verbs that denotes a momentary or punctiliar action (e.g., to sneeze, to blink).

(grammar) A feature of the verb which denotes viewing the event the verb describes as a completed whole, rather than from within the event as it unfolds. For example, "she sat down" as opposed to "she was sitting down". Since the focus is on the completion of what is expressed by the verb, this aspect is generally associated with the past and future tenses. This term is often used interchangeably with aorist aspect. This is not to be confused with the perfect tense.

(grammar) A feature of the verb which specifies an action as occurring habitually, usually, ordinarily, or customarily

(rail transport) The visual appearance of a railway signal

(linguistics) A grammatical aspect that expresses the dynamic quality of actions that are in progress.

(linguistics) A grammatical aspect that expresses the state of the subject that is continuing the action.

(grammar, semantics) The aspect of a verb phrase or other predicate – its temporal structure or relationship to the time of use – marked through any of various grammatical elements, as distinguished from lexical aspect.

(grammar) A property of verbs and other predicates indicating internal temporal nature; aktionsart.

(rail transport) Synonym of multiple-aspect.

(rail transport) Designating a colour-light railway signal which displays at least three aspects.