Auricle, n. Pavilion, external ear.

Aurora, n. 1. (Mythol.) Goddess of Morning.

2. Daybreak, dawn, morning, morn, sunrise, break of day, opening of day, peep of day, first blush of the morning.

Aurora borealis, [L.] Northern lights, polar lights.

Auspice, n. Omen, augury, sign, portent, presage, prognostic.

Auspices, n. pl. Favor, influence, patronage, protection, support.

Auspicious, a. 1. Prosperous, successful, fortunate, lucky, happy, red-letter.

2. Propitious, promising, favorable, seasonable, opportune, golden, bright.

Austere, a. 1. Rough (to the taste), sour and astringent.

2. Severe, rigid, strict, formal, stiff, rigorous, harsh, stern, difficult, hard, uncompromising, unrelenting, relentless, ascetic, straight-laced.

Austerity, n. Severity, rigor, sternness, harshness, asceticism.

Authentic, a. 1. Genuine, real, true, veritable, pure, uncorrupted, unadulterated, not false, not spurious, not fictitious, not apocryphal, what it purports to be.

2. Trustworthy, reliable, authoritative, of approved authority, to be depended on, worthy of belief.

Authenticate, v. a. Verify, seal, attest, give credit or validity to, prove to be genuine.

Authentication, n. Verification, attestation, seal, confirmation.

Authenticity, n. 1. Genuineness.

2. Trustworthiness.

Author, n. 1. Originator, inventor, maker, creator, father, former, contriver, first cause.

2. Writer, composer.

Authoritative, a. 1. Official, commanding, by authority, ex cathedra.

2. Dictatorial, imperative, imperious, magisterial, oracular, peremptory, dogmatic.

Authorities, n. pl. 1. Magistrates, officials, persons in office.

2. Precedents, decisions, judgments.

Authority, n. 1. Power, sovereignty, dominion, empire, government.

2. Rule, sway, ascendency, supremacy, control, influence, interest.

3. Permission, warrant, warranty, liberty, permit, precept, order, authorization, sanction.

4. Witness, testimony.

5. Credibility, weight of evidence.

6. Respectability, dignity, weight of character.

Authorize, v. a. 1. Sanction, justify, warrant, legalize, support by authority.

2. Empower, commission, permit, allow, give permission to, give leave to, give authority to.

Autochthonal, a. Aboriginal, original, primitive, primeval, pristine, primary, first, native, indigenous.

Autochthonous, a. Aboriginal, original, primitive, primeval, pristine, primary, first, native, indigenous.

Autocracy, n. Dictatorship, absolutism, despotism, tyranny, arbitrary power, absolute power.

Autocrat, n. Dictator, despot, tyrant, absolute ruler.

Autocratic, a. Absolute, despotic.

Automatic, a. Self-moving, self-acting.

Autopsy, n. 1. Ocular evidence, personal examination.

2. Post-mortem examination.

Autumn, n. Fall, fall of the leaf.

Auxiliary, a. Aiding, helping, assisting, ancillary, subsidiary, helpful.

Auxiliary, n. Helper, assistant, coadjutor, adjutant, co-operative, ally, confederate, right-hand man.

Avail, v. a. Benefit, profit, be of advantage to.

Avail one's self of, Use, employ, take advantage of, turn to account, make use of.

Avail, v. n. Be of advantage, do good, be of use, answer the purpose.

Avail, n. Profit, advantage, benefit, use, utility, service.

Avails, n. pl. Proceeds, profits, returns.

Available, a. 1. To be availed of, to be turned to account.

2. Serviceable, useful, profitable, advantageous, beneficial.

3. Suitable or fit (for some purpose), likely to answer the end.

Avant-courier, n. Harbinger, forerunner, herald.

Avant-guard, n. Van, advanced guard.

Avarice, n. Penuriousness, cupidity, niggardliness, closeness, covetousness.

Avaricious, a. Miserly, penurious, parsimonious, sordid, illiberal, niggardly, mercenary, close, stingy, mean, grasping, close-fisted, hard-fisted, covetous, eager for gain (for the sake of hoarding it).

Avast, interj. (Naut.) Hold, stop, stay, enough.

Avaunt, interj. Hence, begone, be off, get you gone.

Avenge, v. a. 1. Take satisfaction for, award just punishment for.