Meaning of 獲 in Japanese

その子供達２人が賞を獲得した。
Both of the children won a prize.

ワシは獲物めがけて急降下した。
The eagle dived at its prey.

取らぬ狸の皮算用か。
Are you counting your chickens before they are hatched?

きのう魚を３匹とった。
I caught three fish yesterday.

私たちは、昨日、森に行き、２頭の鹿を捕獲した。
We went hunting in the forest and caught two deer yesterday.

多くの人が一攫千金を夢見て宝くじを買う。
Many people buy lottery tickets with the dream of immediately becoming wealthy.