Could you please explain the meaning of "facility" in the sentence to me?
The adult guided the child with extreme facility and gentleness in precisely direction to help him put the key into the slot.

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Answer

If you do something with facility, it means you do it easily and skillfully. See definition 4: http://www.ldoceonline.com/dictionary/facility

Answer

In this sentence the word " facility" means "care and protection and teaching"

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