preposition
a - used to indicate the value of something
having money and possessions equal in value to (an amount)
good, valuable, or important enough for (something) :deserving of (something)
a bird in the hand is worth two in the bush
a picture is worth a thousand words
used to say that it is often easier to show something in a picture than to describe it with words;
for all something or someone is worth
to the fullest extent possible :as much as possible or with as much effort as possible
for what it's worth
used to say that you are not sure how helpful something you are about to say will be
not worth the candle
worth your salt
worth your weight in gold
noun
[noncount] an amount of something that has a specified value, that lasts for a specified length of time, etc. - + of
the amount of money that something is worth :value
usefulness or importance :value
your money's worth