How do you use tropic in a sentence?

Answer 1

The word 'tropic' is a noun, a word for one of the two imaginary lines around the Earth on either side of the equator.

The Tropic of Cancer is 23°26' north of the equator and the Tropic of Capricorn is 23° 26' south of the equator. When referring to either of specific tropic, the word is a proper noun, which is capitalized.

The plural form 'tropics' is a word for the hottest part of the Earth, between the Tropic of Cancer and the Tropic of Capricorn; the noun tropics is a common noun.

The word tropic is also an adjective (an alternate for the adjective tropical), used to describe a noun as in or of the tropics, having a climate of or similar to the tropics.

Example sentences: The northern part of Australia lies in the tropics. The Tropic of Capricorn runs through Western Australia, the Northern Territory, and Queensland.

Answer 2

The word 'tropics' is a plural, common, abstract noun; the singular form is 'tropic'.

The plural form, tropics, is a word for the part of the world that is near the equator, where the weather is warm. The singular form, tropic, is one of the two imaginary lines of latitude drawn around the earth, parallel to the equator; the line north of the equator is the Tropic of Cancer; the line south of the equator is the Tropic of Capricorn. Both are proper nouns, the names of specific parallels. Example sentence:

The tropics lie between the Tropic of Cancer and the Tropic of Capricorn.