| Left side of ship (facing forward) | Port |
| Right side of ship (facing forward) | Starboard |
| Front of ship | Fore (or Bow) |
| Rear of ship | Aft (or Stern) |
| Most stable area during rough seas | Amidships, lower decks (General maritime guidance) |
| Muster drill legal basis | Required under SOLAS (Safety of Life at Sea) international convention (International Maritime Organization) |
Why Cruise Vocabulary Matters
Pick up any cruise itinerary or onboard daily newsletter and you'll encounter a vocabulary that feels almost nautical — because much of it is. Terms like aft, tender port, and muster drill appear without explanation on signage, in embarkation paperwork, and during the captain's announcements. Passengers who arrive unfamiliar with the language can miss important logistics or misunderstand what they've paid for.
This reference breaks down the most common cruise terms you'll encounter before you board and throughout your voyage — covering ship layout, port operations, onboard charges, and safety procedures. Whether you're planning your first sailing or returning after years away, treating this as a pre-trip refresher can save genuine confusion.
If you're still sorting out what's actually covered by your fare, see our guide to cruise all-inclusive misconceptions before you sail.
Aft
The rear section of a ship. Aft cabins and decks are toward the back of the vessel.
Tender Port
A port where the ship anchors offshore and passengers travel to land on small boats called tenders, because the ship cannot dock directly at a pier.
Muster Drill
A mandatory safety briefing required by international maritime law, in which passengers learn emergency procedures and locate their assigned muster station.
Repositioning Cruise
A voyage that moves a ship from one seasonal home region to another, such as from the Caribbean to Europe for the summer season. These sailings often have longer durations and unique itineraries.
Folio
Your individual onboard account, which tracks all purchases made during the cruise using the ship's cashless system.
OBC (Onboard Credit)
A monetary credit applied to a passenger's folio, usable for onboard purchases. It does not convert to cash and may have restrictions on what it can be applied toward.
Sea Day
A full day during which the ship remains at sea with no scheduled port visit, allowing passengers time to use onboard amenities.
Gangway
The retractable walkway or ramp connecting the ship to the pier at a port, used by passengers and crew to board or disembark.
Port Fees and Taxes
Government-mandated charges associated with docking at specific ports, passed on to passengers and typically listed separately from the base cruise fare.
Gratuity / Service Charge
A daily per-person fee added to the passenger folio to compensate onboard service staff. The amount and structure vary by cruise line and may be adjustable onboard.
Amidships
The middle section of a ship, lengthwise and widthwise. Cabins amidships tend to experience less motion in choppy seas.
Port of Call
Any destination visited during a cruise itinerary that is not the embarkation or disembarkation point.
Key Terms Organized by Category
Ship Orientation
Cruise ships use directional terms drawn from traditional seamanship. Fore refers to the front of the ship; aft is the rear. Port is the left side when facing forward; starboard is the right. Amidships describes the middle section — often the most stable area during rough weather, which is worth knowing if motion sickness is a concern. For more on that topic, see our overview of seasickness on cruises.
Port & Itinerary Terms
A homeport is where you embark and disembark. A port of call is any destination visited mid-voyage. When a ship cannot dock directly — because a harbor is too shallow or a pier is unavailable — passengers reach shore via a small boat called a tender; that stop is called a tender port. A sea day is a full day spent sailing with no port stop. Repositioning cruises move a ship between seasonal home regions, often offering longer itineraries at different price points than standard sailings.
Onboard Charges & Account Terms
Most ships operate a cashless onboard system tied to a folio — your running account for purchases made during the voyage. A gratuity (sometimes called a service charge or daily tip) is commonly added automatically per person, per day, and is separate from any promotional package. Port fees and taxes are government-levied charges passed on to passengers, often listed separately from the cruise fare. An OBC (onboard credit) is a spending credit applied to your folio — useful for understanding what promotional offers actually cover.
| Left side of ship (facing forward) | Port |
| Right side of ship (facing forward) | Starboard |
| Front of ship | Fore (or Bow) |
| Rear of ship | Aft (or Stern) |
| Most stable area during rough seas | Amidships, lower decks (General maritime guidance) |
| Muster drill legal basis | Required under SOLAS (Safety of Life at Sea) international convention (International Maritime Organization) |
Safety & Regulatory Terms
A muster drill (also called a lifeboat drill or safety drill) is a mandatory safety briefing required by international maritime law. Modern versions may be completed via a ship's app before boarding — check your cruise line's specific requirements. Muster stations are the assigned assembly points passengers report to in an emergency. The gangway is the walkway connecting the ship to the pier — you'll cross it every time you go ashore.