intransitive. Of water, flames, etc.: to decrease in height, subside; spec. (of the sea, a river, or other body of water) to recede through tidal…

intransitive. To flow back or recede, as the water of the sea or a tidal river: frequent in phrase, to ebb and flow. Also with away, down, off, out.

To grow less in quantity or volume. Of the sea, water: To subside, ebb. Obsolete.

intransitive. To flow back; esp. (of the sea, tide, waters) to ebb. Frequently in to flow and reflow. Now rare.

intransitive. Of the tide or tidal water: to ebb, recede.

intransitive. Of the tide: to recede; to ebb. Also figurative.

intransitive. To flow back, ebb.