Absence of tides.

Without tides; nontidal.

A line of floating debris, seaweed etc. that marks the boundary between two surface currents.

plural of tidemark

Designed to support someone through a brief but often difficult period, especially financially.

plural of tidewaiter

Alternative form of tide waiter

A customhouse officer who goes on board a merchant ship to secure payment of the duties; a tidewaiter. / Synonym of tide waiter (“a person who watches public opinion before declaring their own”)

plural of tidesman

plural of tidefall