worthwhileˈ adjective

1. Such as to repay trouble and time spent on it (predicatively also, strictly, worth while; see while)
2. Good
3. Estimable
4. Useful, beneficial or rewarding

for all it's, etc worth

To the utmost

for all one is worth

With all one's might or energy

for what it is worth

A phrase implying that one is doubtful of the truth of what one has to report or unwilling to be responsible for its accuracy, or aware that one's proposal or suggestion may be of minimal worth

well worth

Amply repaying the effort of

worth it

Worth while

while /(h)wīl/

1. A space of time
2. Time and trouble spent

1. (also whilst /wīlst or hwīlst/) during the time that
2. At the same time that
3. As long as
4. Whereas
5. Although
6. Notwithstanding the admitted fact that
7. Until (Scot and N Eng dialect)

Until

To pass (time) in a leisurely or undemanding way (with away)

whiles conjunction (Bible)

1. While, at the same time that
2. Until (Shakespeare)

At times (orig genitive of OE hwīl)

while-ere or whilere /wī-lārˈ or hwī-lārˈ/ adverb (archaic)

A little while ago, formerly

whilevˈer conjunction (chiefly Aust)

For as long as

all the while

During all the time (that)

in between whiles

During the intervals

make it worth someone's while (informal)

To pay someone well for his or her trouble

once (or every once) in a while

Now and then

the while (Shakespeare)

At the present time, in the meantime

the whilst (obsolete)

1. While
2. In the meantime

worth (one's) while

Worth taking time and trouble over