subscribe (Verb) — (investing) offer to buy, as of stocks and shares. ex. "The broker subscribed 500 shares"
subscribe (Verb) — Mark with one's signature; write one's name (on). ex. "She subscribed the letter and sent it off"
subscribe (Verb) — Adopt as a belief. ex. "I subscribe to your view on abortion"
subscribe (Verb) — Pay (an amount of money) as a contribution to a charity or service, especially at regular intervals. ex. "I subscribed $10 a month to my favourite radio station"
subscribe (Verb) — Receive or obtain regularly. ex. "We subscribe to the Times every day"