THAN

adverb

1. At that time; then.

preposition

1. Introduces a comparison, and is associated with comparatives, and with words such as more, less, and fewer. Typically, it seeks to measure the force of an adjective or similar description between two predicates.

conjunction

1. Used in comparisons, to introduce the basis of comparison.
2. (obsolete outside dialectal, usually used with for) Because; for.