plural of hard head

plural of hard tack

plural of hard cider

plural of hard-sell

plural of hard skill

Third-person singular simple present indicative form of hard skill

plural of hard mutation

(UK politics) The withdrawal of the United Kingdom both from the European Union and from European institutions (e.g. the European single market or the European Union Customs Union).

plural of water hardness

(inorganic chemistry) The sum of calcium and magnesium ion concentrations in water, normally expressed in mmol/L