* Adjective: Describing something that is nearer in distance or time.
* Example: "The closer we got to the finish line, the faster we ran."
* Adverb: Modifying a verb, adjective, or another adverb, indicating a greater degree of closeness.
* Example: "He sat closer to the fire for warmth."
* Comparative adjective: Comparing something to something else in terms of nearness.
* Example: "This chair is closer to the door than that one."
* Comparative adverb: Comparing an action to something else in terms of nearness.
* Example: "He ran closer to the edge than I would have dared."
To determine the part of speech of "closer" in a specific sentence, you need to consider its function in the sentence.