Meaning : Offer to buy, as of stocks and shares.
Example :
The broker subscribed 500 shares.
Meaning : Mark with one's signature. Write one's name (on).
Example :
She signed the letter and sent it off.
Please sign here.
Synonyms : sign
Meaning : Pay (an amount of money) as a contribution to a charity or service, especially at regular intervals.
Example :
I pledged $10 a month to my favorite radio station.
Synonyms : pledge
Meaning : Receive or obtain regularly.
Example :
We take the Times every day.
Synonyms : subscribe to, take