piirab

Piirab is an Estonian verb form that means to border, delineate, or set a boundary. It functions as the third-person singular present indicative of the verb piirama, and it is used to describe the act of marking or establishing a limit, whether in a geographical, administrative, or figurative sense. In geographic and political contexts, piirab denotes drawing or enforcing borders between places, regions, or countries. In more general usage, it can describe limiting actions, powers, or resources.

The root of the word is piir-, which conveys the idea of a boundary or limit. This root appears in related Estonian words such as piir (border or boundary) and piiri (genitive or adjectival form related to boundary). The form piirab is part of standard Estonian vocabulary and appears in everyday speech, as well as in official or descriptive writing.

Grammatical notes: piirab is the present tense form used with third-person singular subjects. The infinitive of the verb is piirama, and many other conjugated forms follow regular Estonian verb patterns. Because the concept of borders and limits is common across disciplines, piirab is frequently found in journalism, geography, law, and public discourse.

See also: piir, piirama, piiritama (to constrain or limit), and related terms for discussing boundaries and delineation in Estonian.