hard (suomeksi)

kova (a: pehmeän vastakohtana / vedestä}} [[kova]], mineraalipitoinen / yhteys / resistant to pressure / requiring a lot of effort to do or understand / demanding a lot of effort to endure / of water, high in dissolved calcium compounds)
ankara (a: severe)
vaikea (a: requiring a lot of effort to do or understand)
kyseenalaistamaton (a: kuva)
vaikutukseltaan vahva (a)
mineraalipitoinen (a: vedestä}} [[kova]], mineraalipitoinen / yhteys)
rankka (a: demanding a lot of effort to endure)
vahva (a: unquestionable / of drink: strong)
tiukka (a: of drink: strong)
väkevä (a: of drink: strong)
kovasti (d: with much force or effort (related to act of think))
kovaa (d: with much force or effort (related to act of think))
tiukasti (d: with much force or effort (related to act of think))