* Adjective: Describing something that is nearly accurate or correct, but not exact.
* Example: "The approximate cost of the project is $10,000."
* Verb: To make something closer to accurate or correct.
* Example: "We approximated the distance by using a map."
* Noun: A value that is close to but not exactly the same as the actual value.
* Example: "The engineer gave an approximate of the building's height."
So, the specific part of speech depends on the context of the sentence!