a multi-word or multi-morphemic utterance at least one of whose components is selectionally constrained or restricted by linguistic convention such that it is freely chosen
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Nt terminid käiku vahetama, rahvusvaheline leping, vaikiv nõusolek, avalik õigus; eestilised eitused ei liiguta oimugi, ei liiguta lillegi, närvgi ei liigu, silmgi ei pilgu.
Phrasemes can be broken down into groups based on their compositionality (whether or not the meaning they express is the sum of the meaning of their parts) and the type of selectional restrictions that are placed on their non-freely chosen members. Non-compositional phrasemes are what are commonly known as idioms, while compositional phrasemes can be further divided into collocations, clichés, and pragmatemes.