/ ˌmedɪˈteɪʃn; NAmE / noun
1.
[ U ] the practice of thinking deeply in silence, especially for religious reasons or in order to make your mind calm :
She found peace through yoga and meditation.
He was deep in meditation and didn't see me come in.
2.
[ C , usually pl. ] meditation (on sth) ( formal ) serious thoughts on a particular subject that sb writes down or speaks :
his meditations on life and art
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WORD ORIGIN
Middle English : from Old French , from Latin meditatio(n-) , from meditari , from a base meaning measure; related to mete .