Noun

(en noun)

The act of adopting, or state of being adopted; voluntary acceptance of a child of other parents to be the same as one's own child.

* {{quote-book, year=1905, author=

, title= , chapter=1 citation , passage=“The story of this adoption is, of course, the pivot round which all the circumstances of the mysterious tragedy revolved. Mrs. Yule had an only son, namely, William, to whom she was passionately attached ; but, like many a fond mother, she had the desire of mapping out that son's future entirely according to her own ideas. […]”}}

A Chinese baby girl was given away for adoption .

Admission to a more intimate relation; reception; as, the adoption of persons into hospitals or monasteries, or of one society into another.

The choosing and making that to be one's own which originally was not so; acceptance; as, the adoption of opinions.

(computing) Transfer between an old system to another (usually better) system.

Our school is considering the adoption of Wiktionary as the standard dictionary.

Noun

(en noun)

An instance of moving to live in another place for a while.

Seasonal moving for animals, birds or fishes to breed or find a new home.

* {{quote-magazine, date=2013-01-01

, author=Paul Bartel, Ashli Moore , title=Avian Migration: The Ultimate Red-Eye Flight , volume=101, issue=1, page=47–48 , magazine= citation , passage=Many of these classic methods are still used, with some modern improvements. For example, with the aid of special microphones and automated sound detection software, ornithologists recently reported […] that pine siskins (Spinus pinus ) undergo an irregular, nomadic type of nocturnal migration .}}

Movement in general.

The migration of lead from a can to the food inside it can cause lead poisoning.

(computing) Instance of changing a platform from an environment to another one.