(1):

(n.) Wash or flow of water against the shore or bank.

(2):

(n.) An accession of land gradually washed to the shore or bank by the flowing of water. See Accretion.

(3):

(n.) Matter deposited by an inundation or the action of flowing water; alluvium.

(4):

(n.) An overflowing; an inundation; a flood.