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

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

2. [ adjective ] situated ahead or going before
Synonyms: advanced advance
Examples:

"an advance party" "at that time the most advanced outpost was still east of the Rockies"

Related terms: front