Webster's Revised Unabridged Dictionary · 1913

Equal

Equal , adjective

[Latin aequalis, from aequus even, equal; akin to Sanskrit {not transcribed}ka, and perh. to Latin unus for older oinos one, English one.]

1.
Agreeing in quantity, size, quality, degree, value, etc.; having the same magnitude, the same value, the same degree, etc.; -- applied to number, degree, quantity, and intensity, and to any subject which admits of them; neither inferior nor superior, greater nor less, better nor worse; corresponding; alike; as, equal quantities of land, water, etc.; houses of equal size; persons of equal stature or talents; commodities of equal value.
2.
Bearing a suitable relation; of just proportion; having competent power, abilities, or means; adequate; as, he is not equal to the task.
The Scots trusted not their own numbers as equal to fight with the English. — Clarendon
It is not permitted to me to make my commendations equal to your merit. — Dryden
Whose voice an equal messenger Conveyed thy meaning mild. — Emerson
3.
Not variable; equable; uniform; even; as, an equal movement.
An equal temper. — Dryden
4.
Evenly balanced; not unduly inclining to either side; characterized by fairness; unbiased; impartial; equitable; just.
Are not my ways equal? — Ezek. xviii. 29
Thee, O Jove, no equal judge I deem. — Spenser
Nor think it equal to answer deliberate reason with sudden heat and noise. — Milton
5.
Of the same interest or concern; indifferent.
They who are not disposed to receive them may let them alone or reject them; it is equal to me. — Cheyne
6.
(Music) Intended for voices of one kind only, either all male or all female; -- opposed to mixed. [Rare]
7.
(Mathematics) Exactly agreeing with respect to quantity.
Collocations (1)
Equal temperament (Music) , See Temperament.

Equal , noun

1.
One not inferior or superior to another; one having the same or a similar age, rank, station, office, talents, strength, or other quality or condition; an equal quantity or number; as, “If equals be taken from equals the remainders are equal.”
Those who were once his equals envy and defame him. — Addison
2.
State of being equal; equality. [Obsolete] — Spenser

Equal , transitive verb

1.
To be or become equal to; to have the same quantity, the same value, the same degree or rank, or the like, with; to be commensurate with.
On me whose all not equals Edward's moiety. — Shakespeare
2.
To make equal return to; to recompense fully.
Who answered all her cares, and equaled all her love. — Dryden
3.
To make equal or equal to; to equalize; hence, to compare or regard as equals; to put on equality.
He would not equal the mind that he found in himself to the infinite and incomprehensible. — Berkeley