cusp

As a letter s

is the letter s with a.

As a noun cusp is

a sharp point or pointed end.

As nouns the difference between cusp and null

is that cusp is a sharp point or pointed end while null is zero, nil; the cardinal number before einn.

Bend is a related term of cusp.

As nouns the difference between bend and cusp

is that bend is a curve while cusp is a sharp point or pointed end.

As a verb bend

is to cause (something) to change its shape into a curve, by physical force, chemical action, or any other means .

As nouns the difference between cusp and summit

is that cusp is a sharp point or pointed end while summit is (countable) a peak; the top of a mountain.

As a verb summit is

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

As a verb verge

is .

As an adjective verge

is ribbed, veined.

As a noun cusp is

a sharp point or pointed end.

As a noun cusp

is a sharp point or pointed end.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between cusp and boundary

is that cusp is a sharp point or pointed end while boundary is the dividing line or location between two areas.

As nouns the difference between precipice and cusp

is that precipice is a very steep cliff while cusp is a sharp point or pointed end.

As a noun cusp

is a sharp point or pointed end.

As an acronym crest is

(military) the five types of verbal support used to enhance an (oral) presentation: comparisons, reasons, examples, statistics, testimony.

As a proper noun ridge

is after a natural landscape feature.

As a noun cusp is

a sharp point or pointed end.