During the afternoon, my cats are content to nap on the couch.What is the meaning of these sentence?

Question

Content is the meaning of "the amount of a substance that something contains".Is it right?But I don't understand meaning of word "content" in these sentence.

Answer 1

Content here means satisfied. below I posted several meanings for content, Noun, adverb, and verb.

Content has several meanings:
noun
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the things that are inside something such as a box, bottle, building, or room
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the things that are written in a book, magazine, letter, document, etc.
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a list at the beginning of a book or magazine, showing the parts into which the book or magazine is divided
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the subject, ideas, or story that a piece of writing or a radio or television program deals with
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any material, such as writing, pictures, or music, that appears on a website or cd-rom
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the amount of a substance that something contains
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adjective
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happy and satisfied with your life
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satisfied and willing to accept a situation, and not wanting anything more or better
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verb
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to make someone feel happy or satisfied
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noun
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a feeling of happiness and satisfaction
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