summit

As a noun summit

is a peak; the top of a mountain.

As a verb summit

is to reach the summit of a mountain.

As an adjective acrocarpous is

developing the archegonium on the summit of the primary stem; fruiting at tips, in the manner of mosses.

As nouns the difference between summit and fastigium

is that summit is (countable) a peak; the top of a mountain while fastigium is an apex or summit.

As a verb summit

is (transitive|hiking|climbing|colloquial) to reach the summit of a mountain.

As nouns the difference between summit and culmen

is that summit is (countable) a peak; the top of a mountain while culmen is top; summit; acme.

As a verb summit

is (transitive|hiking|climbing|colloquial) to reach the summit of a mountain.