Baby slept soundly all night long.

Meaning: This sentence describes a baby sleeping deeply and without disturbance throughout the entire night.

Choice of Words: Slept is the past tense of sleep, meaning to be in a state of rest with closed eyes. Soundly means deeply and without disturbance. All means the entire amount or quantity. Night is the period of darkness between sunset and sunrise. Long means having a great extent of time or distance.

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