1. At all times; invariably: always late.2. For all time; forever: They will always be friends.3. At any time; in any event: You can always resign if you're unhappy.
ETYMOLOGY:
Middle English alweis : alwei, always (from Old English ealne weg ( ealne, accusative of eall, all; see all + weg, way; see wegh- in Appendix I) + -es, adv. suff.; see s3.