Verbal conventional signification is further divided into three forms. They differ according to whether the word points to its entire assigned meaning, part of it, or something necessarily connected with it.
1. Muṭābaqah: signification of the whole meaning.
2. Taḍammun: signification of a component of that meaning.
3. Iltizām: signification of a necessary concomitant outside that meaning.
These are not three separate species of words. One word may signify in different ways relative to different intended objects.