Real Dictionary

devote
verb: If you devote a particular proportion of a piece of writing or a speech to a particular subject, you deal with the subject in that amount of space or time.
verb: If you devote yourself, your time, or your energy to something, you spend all or most of your time or energy on it.

devote in American English
to set apart for a special use or service; dedicate
transitive verb: to give up or appropriate to or concentrate on a particular pursuit, occupation, purpose, cause, etc.

devote in British English
to apply or dedicate (oneself, time, money, etc) to some pursuit, cause, etc