The following nouns often appear in the plural:

Tools and clothes are two parts.

Caliper (compass) compass (compass) tweezers? (tweezers) pliers? (pliers) pliers? (Deputy)

Balance? (Scale), scissors? (scissors), scissors? (scissors) Glasses? Glasses, etc.

Pants (trousers) pants? (Pants), shorts? (shorts) flare? (bell bottoms),

Jeans? Pajamas? (pajamas),? Tights? (Tights) Sunglasses? (curtains), etc.

Geographical and country names with multiple parts.

Alps? (Alps), Rocky Mountains? (Rocky Mountains)? Highland? (Scottish Highlands)? Balkan peninsula? (Balkan Peninsula)?

Maldives? (Maldives), Bermuda? (Bermuda), Himalayas? (Himalayan),? Niagara Falls?

America? (USA), United Nations, Netherlands? (Netherlands), Philippines? (Philippines)

Other nouns in plural form

Arm? (weapons),? Personal effects? Clothes? (Clothes) Congratulations? (raises a glass),? Content? (content),? Customs? Dregs (import duty)? (dross),

Revenue? (income) fireworks? (Fireworks) Fund? (fund),? Commodities? Green vegetables? Accommodation (vegetables)? (boarding house) it seems,? (appearance)

Minutes? (For a moment) Oats? (oats),? Suburb? (suburban), Is it painful? (pain),? Premise? (premise)? Savings? (savings),? Spirit? (Emotion),? Stair? (stairs),

Suburb? (Suburb), the surrounding environment? (Environment) Thank you? (Thanks) Tropical? (tropical)? Salary? (salary), etc.

Subject name

Acoustics (acoustics), track and field (sports), classicism (classics), linguistics (linguistics), mathematics (mathematics),

Mechanics (mechanics), optics (optics), physics (physics), plastics (plastic surgery), politics (politics), statistics (statistics), etc.

Name of disease:

Appendicitis (appendicitis), arthritis (arthritis), bronchitis (bronchitis) etc.

Exercise:

Billiards (billiards), bowling (bowling), darts (javelin) and checkers (checkers)? Gymnastics and so on.