SINGULAR (uncountable) NOUNS ENDIND IN –S

I.                    BRANCHES OF SCIENCE

acoustics, aerodynamics, mathematics, genetics, statistics, physics, quantum mechanics,
thermodynamics, linguistics,

II.                  SPORTS AND GAMES

billiards, bowls, cards, darts, aerobics, dominoes, draughts, skittles


III.                ILLNESSES AND DISEASES

  measles, mumps, diabetes, rabies, rickets, shingles


IV.                PLACES

Athens (!), Brussels, the United States, the United Nations, the Netherlands, the Philippines,
Trinidad and Tobago


WORDS ENDING IN –S, THE SAME IN SINGULAR AND PLURAL

means, species, crossroads, series


WORDS WITHOUT FINAL S, THE SAME IN SINGULAR AND PLURAL

aircraft, police, deer, fish, salmon, trout, moose, offspring, sheep, grouse