extant

As an adjective extant

is still in existence.

As a noun force is

force.

As a noun sextant

is a navigational device for deriving angular distances between objects so as to determine latitude and longitude.

As a proper noun Sextant

is the constellation Sextans.

As an adjective extant is

still in existence.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective extant is

still in existence.

As an adjective extant is

still in existence.

As adjectives the difference between actual and extant

is that actual is existing in act or reality, not just potentially; really acted or acting; occurring in fact while extant is still in existence.

As a noun actual

is an actual, real one; notably:.

As adjectives the difference between extant and extirpated

is that extant is still in existence while extirpated is (of a species) locally extinct (though alive elsewhere).

As a verb extirpated is

(extirpate).

As adjectives the difference between extant and endangered

is that extant is still in existence while endangered is in danger, at risk, said of something where there is a strong possibility something bad will happen to it (for example, a species in danger of going extinct.

As a verb endangered is

past tense of endanger.

As an adjective extant

is still in existence.

As a noun cunabula is

the earliest abode; original dwelling place; originals.

As adjectives the difference between extant and nonextant

is that extant is still in existence while nonextant is not extant.