Meaning of "worth"

[Gertruda]

English Idioms and Expressions, Intermediate level

ESL/EFL Test #11 "Home Sweet Home", question 6

Yes, I agree but at the same time it's not the end of the world.

(a) worth worrying about
(b) worth talking about
(c) worth looking at
(d) worth speaking about

English Idioms and Expressions, Intermediate level

ESL/EFL Test #11 "Home Sweet Home", answer 6

Yes, I agree but at the same time it's not worth worrying about.

Correct answer: (a) worth worrying about
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meaning of "worth", please.

Gertruda

[Mister Micawber]

.
Worth = ADJECTIVE: 1. Equal in value to something specified: worth its weight in gold. 2. Deserving of; meriting: a proposal not worth consideration. 3. Having wealth or riches amounting to: a person worth millions.
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Native English teacher at Mister Micawber's