rel Relative Denotes concepts for which comparison is valid and meaningful.
abs Absolute Denotes concepts that are intrinsic, for which comparison is invalid, impossible or meaningless.
ind Indeterminate The meaning is not specific and can cover a range of meaning.
comp Comparative Denotes intermediate degree of the comparison of adjectives.
sup Superlative Denotes the highest degree of the comparison of adjectives and adverbs.
ext Extremitive Denotes an extreme or extraordinary degree of the comparison of adjectives and adverbs.

These groups are mutually exclusive.

The relative modifiers apply only to the Relative group. They are meaningless with the other groups.