A word-form is a syntagmatic unit between the morpheme and the phrase that is generally taken by linguists to correspond to the element written between two spaces in many orthographies. There is a large literature about the definition of the word-form, which is difficult to summarize here.
- grammatical word (this term is probably more common in English than word-form)
- morphological word
- syntactic word
This term is probably a translation of Russian slovoforma.
- Haspelmath, Martin. 2002. Understanding morphology. London: Arnold.