noun, noun or participle which takes 'suru', transitive verb
Used in sports tournaments to refer to a player's or team's ranking position that determines match pairings. Also used as a suru-verb meaning 'to seed'.
彼は第1シードで大会に出場した。
He entered the tournament as the top seed.
主催者は強豪チームをシードした。
The organizers seeded the strong teams.