Verb

(dedicat)

To set apart for a deity or for religious purposes; consecrate.

To set apart for a special use

dedicated their money to scientific research.

To commit (oneself) to a particular course of thought or action

dedicated ourselves to starting our own business. See Synonyms at devote.

To address or inscribe (a literary work, for example) to another as a mark of respect or affection.

To open (a building, for example) to public use.

To show to the public for the first time

dedicate a monument.

Verb

(oblig)

To constrain someone by force or by social, moral or legal means.

I am obliged to report to the police station every week.

{{quote-Fanny Hill, part=3 , Tho' he was some time awake before me, yet did he not offer to disturb a repose he had given me so much occasion for; but on my first stirring, which was not till past ten o'clock, I was oblig'd to endure one more trial of his manhood.}}

To do someone a service or favour (hence, originally, creating an obligation).

He obliged me by not parking his car in the drive.

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To be indebted to someone.

I am obliged to you for your recent help.

To do a service or favour.

The singer obliged with another song.