beforehand
1. [ adverb ] ahead of time; in anticipation
Synonyms: in_advance ahead
Examples:

"when you pay ahead (or in advance) you receive a discount" "We like to plan ahead" "should have made reservations beforehand"

2. [ adjective ] being ahead of time or need
Synonyms: advance
Examples:

"gave advance warning" "was beforehand with her report"

Related terms: early
Similar spelling:   be_born