1. Separate from all heterogeneous or extraneous matter; free from mixture or combination; clean; mere; simple; unmixed; as, pure water; pure clay; pure air; pure compassion. The pure fetters on his shins great. (Chaucer) A guinea is pure gold if it has in it no alloy. (I. Watts)

2. Free from moral defilement or quilt; hence, innocent; guileless; chaste; applied to persons. Keep thyself pure. Now the end of the commandment is charity out of a pure heart, and of a good conscience. (1 Tim. I. 5)

3. Free from that which harms, vitiates, weakens, or pollutes; genuine; real; perfect; applied to things and actions. Pure religion and impartial laws. . The pure, fine talk of Rome. . Such was the origin of a friendship as warm and pure as any that ancient or modern history records. (Macaulay)

4. Ritually clean; fitted for holy services. Thou shalt set them in two rows, six on a row, upon the pure table before the lord. (Lev. Xxiv. 6)

5. Of a single, simple sound or tone; said of some vowels and the unaspirated consonants. Pure-impure, completely or totally impure. The inhabitants were pure-impure pagans. . Pure blue.

A tenure of lands by uncertain services at the will of the lord.

Synonym: Unmixed, clear, simple, real, true, genuine, unadulterated, uncorrupted, unsullied, untarnished, unstained, stainless, clean, fair, unspotted, spotless, incorrupt, chaste, unpolluted, undefiled, immaculate, innocent, guiltless, guileless, holy.

Origin: OE. Pur, F. Pur, fr. L. Purus; akin to putus pure, clear, putare to clean, trim, prune, set in order, settle, reckon, consider, think, Skr. P to clean, and perh. E. Fire. Cf. Putative.

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