biconvex/bieʹkonveks, -ʹveks/ adj

• umiak
• umlaut
• umma
• umpire
• umpteen
• UN
• un
• un-
• UNA
• unabashed
• unabated
• unable
• unabridged
• unaccented
• unacceptable
• unaccompanied
• unaccountable
• unaccounted
• unaccustomed
• unacknowledged
• una corda
• unacquainted
• unadjusted
• unadopted
• unadulterated