scrutinize

As a noun taxonomy

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

As a verb scrutinize is

to examine something with great care.

As verbs the difference between scrutinize and vet

is that scrutinize is to examine something with great care while vet is to thoroughly check or investigate particularly with regard to providing formal approval.

As a noun vet is

a veterinarian or veterinary surgeon.

As verbs the difference between ponder and scrutinize

is that ponder is to wonder, to think of deeply while scrutinize is to examine something with great care.

In transitive terms the difference between peruse and scrutinize

is that peruse is to read completely while scrutinize is to audit accounts etc in order to verify them.

As a noun peruse

is an examination or perusal; an instance of perusing.

In transitive terms the difference between analyze and scrutinize

is that analyze is to examine in such a manner as to ascertain the elements or nature of the thing examined; as, to analyze a fossil substance, to analyze a sentence or a word, or to analyze an action to ascertain its morality while scrutinize is to audit accounts etc in order to verify them.

As verbs the difference between scrutinize and underlook

is that scrutinize is to examine something with great care while underlook is to be suspicious or mistrustful of.

As a noun underlook is

a suspicious or critical look; scowl, leer.

As a verb scrutinize

is to examine something with great care.

As a noun scrutator is

a person who scrutinizes or investigates.

As a verb scrutinize

is to examine something with great care.

As an adjective unscrutinized is

not having been scrutinized.