A language of "dots" and "dashes" used to send messages, either sound using radio waves, or light using a searchlight or Aldis lamp.

A measurement. Parts per billion

Wind-bound. When a vessel is kept in port by a head wind.

General term used to denote all activities connected with the catching of fish by any means.

An extension to the tiller allowing the helmsman to steer while hiking. This may be desired for improved visibility or stability.

A heavy longitudinal timber that angles upward from the stern to support the underside of the fantail.

A ship owned and armed by a private individual that is empowered by a government to fight with enemy ships and capture enemy shipping in time of war.

Costs that do not vary with the level of activity. Some fixed costs continue even if no cargo is carried. Terminal leases, rent and property taxes are fixed costs.

A sleeping berth or bed.

To decorate a ship with flags in celebration of certain occasions.

(1) Small boat for one or two rowers. (2) Small fishing vessel with foresail, boom mainsail, and mizzen trysail.

A person in command of a ship. A person certified as competent to command a ship. A master mariner.

Material passed into the effluent stream composed of foreign materials incorporated into the filter medium.

A form used to acknowledge receipt of cargo and often serves as basis for preparation of the ocean bill of lading.

A certificate issued by an independent agent or firm attesting to the quality and/or quantity of the merchandise being shipped. Such a certificate is usually required in a letter of credit for commodity shipments.

A two-masted vessel with both masts square rigged. On the sternmost mast, the main mast, there is also a gaff sail

Stowing cargo destined for a specific location close together to avoid unnecessary cargo movement.

A position of a flag when lowered part way in salute (method of salute between vessels, like planes dipping wings).

To sail towards the direction from which the wind blows by making a series of tacks. A point of sail also known as sailing close hauled.

When an anchored vessel is forced, by wind or current, to swing across her anchor so as to risk fouling it with her own cable, she is said to break sheer.