SOUND'LY, adv. [from sound, entire.]

1. Healthily; heartily.

2. Severely; lustily; with heavy blows; smartly; as, to beat one soundly.

3. Truly; without fallacy or error; as, to judge or reason soundly.

4. Firmly; as a doctrine soundly settled.

5. Fast; closely; so as not to be easily awakened; as, to sleep soundly.