pure

superl.

  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.
  2. Free from moral defilement or quilt; hence, innocent; guileless; chaste; -- applied to persons.
  3. Free from that which harms, vitiates, weakens, or pollutes; genuine; real; perfect; -- applied to things and actions.
  4. Ritually clean; fitted for holy services.
  5. Of a single, simple sound or tone; -- said of some vowels and the unaspirated consonants.