Matching Pairs Nouns with different meanings in Singular and PluralOnline version Some Latin nouns have different meaning in sing. and plur. by Robin Schweitzer 1 castrum, fort 2 finis, end 3 impedimentum 4 aedes, temple 5 ludus, school, play 6 littera, letter of alphabet 7 auxilium, help 8 copia, plenty 9 pars, part 10 gratia, favour 11 fortuna, fortune 12 opem, help 13 sal, salt possessions baggage epistle, literature wealth thanks sales, wit allied troops houses camp games faction, role boundary forces