preposition. Up to the time of (something happening).
preposition. Before (a time).
conjunction. Up to the time that (a condition becomes true).
conjunction. Before (a condition becoming true).
the GNU version of the Collaborative International Dictionary of English
preposition. To; unto; towards; -- used of material objects.
preposition. To; up to; till; before; -- used of time.
conjunction. As far as; to the place or degree that; especially, up to the time that; till. See till, conj.
The Century Dictionary and Cyclopedia
To; unto: of place.
To; unto; up to: of time.
Up to the time that; till the point or degree that: preceding a clause.
Word Usage
"O ye who believe! approach not prayer while ye are drunk, until ye well know what ye say; nor yet while polluted, unless ye be passing by the way, until ye have washed yourselves."