Synonyms for Adoption:

n.

abstention, absentee ballot, ballot, absolute majority, Aye, block vote, absentee vote, casting vote, ballot box. accept, babysit, adopted, adoptive, adopt, care order, care, adoption agency, babysitter, au pair, Embracement, give. consumption, wear, exploitation, use, usage, operation, application, implementation. acceptance (noun)
approval, permission, enactment, confirmation.
act (noun)
acceptance, espousal, acceptation.
adoption (noun)
acceptance, espousal, borrowing, acceptation.
choosing or taking something as one's own (noun)
approval, acceptance, choice, appropriation, selection, enactment, Embracement, espousal, confirmation.
selection (noun)
appropriation, Choosing, selection, choice.

Other synonyms:

ballot, adoption agency, implementation, Embracement, au pair, use, absentee ballot, ballot box, Aye, babysitter, block vote, casting vote, adopted, care order, adoptive, absolute majority, absentee vote, babysit, selection. application, abstention, care, consumption, usage, exploitation. operation, adopt. wear. Other relevant words:
usage, Choosing, accept, approval, acceptance, application, appropriation, wear, care, use, exploitation, operation, adopted, confirmation, Aye, consumption, babysit, give, enactment, selection, adopt, implementation, Embracement, abstention, permission, choice, babysitter, ballot, adoptive.

Usage examples for adoption

  1. The date of its adoption is not known. – History of the Postage Stamps of the United States of America by John Kerr Tiffany
  2. This has proved a most beneficial measure, and its adoption under corresponding conditions in the United States is most highly to be recommended. – The Earth as Modified by Human Action by George P. Marsh
  3. Its adoption for the plural, appears to have been later: it is not much used in books a hundred years old. – The Grammar of English Grammars by Goold Brown