As a verb excuse

is .

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a noun academician

is (now|chiefly|us) a member (especially a senior one) of the faculty at a college or university; an academic.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As nouns the difference between knoll and null

is that knoll is bulb while null is zero, nil; the cardinal number before einn.

As nouns the difference between sprew and sprue

is that sprew is (medicine|us|dialect) thrush while sprue is sprue (all senses).

As a preposition before

is earlier than (in time).

As an adverb before

is at an earlier time.

As a conjunction before

is in advance of the time when.

As a noun the is

tea (variant of : ).

As adjectives the difference between orangish and orangy

is that orangish is relatively orange in colour while orangy is .

As nouns the difference between grams and inches

is that grams is while inches is .

As a verb inches is

(inch).

As verbs the difference between aerating and cultivating

is that aerating is while cultivating is .

As adjectives the difference between dirty and false

is that dirty is unclean; covered with or containing unpleasant substances such as dirt or grime while false is (label) one of two states of a boolean variable; logic.

As an adverb dirty

is in a dirty manner.

As a verb dirty

is to make (something) dirty.