Martin (1992: 288):
Finally, mention should be made of Halliday (1985: 310-2), who maintains repetition and collocation as distinct categories, and groups together synonymy, antonymy, meronymy and hyponymy under a general heading of synonymy.
Using the dimensions of the SFL model, Halliday & Matthiessen (2004: 572) systematically distinguish the lexical relations that play a rôle in lexical cohesion; most generally, according to axis:
- the nature of relation: syntagmatic (collocation) vs paradigmatic (the rest)
and the paradigmatic according to logical relations:
- the type of expansion: extending (meronymy) vs elaborating (the rest)
and the elaborating according to experiential relations:
- attribution (hyponymy) vs identity (synonymy, repetition).