Cruise glossary: the ship words, in plain language
Last reviewed: August 10, 2026
Cruising has a vocabulary, and the booking sites assume you already speak it. These are the terms that actually decide money, time or comfort — grouped by when you meet them.
Booking a cruise
The words on the booking screen that quietly decide what you pay and where you sleep.
- The four price tiers. An inside cabin has no window (and is genuinely pitch dark — pack a nightlight); oceanview adds a sealed window; balcony adds outdoor space; suites add room and perks. On a port-intensive cruise you use the cabin least — which is the argument for saving on it.
- You book a category, the line picks the exact cabin later — sometimes a free upgrade, always a gamble on location. Cheaper, and fine if you are not particular about decks and neighbours.
- A one-way voyage moving a ship between seasonal regions — including the classic transatlantic. More sea days, fewer ports, notably lower fares, and a one-way flight home to price in.
- A round trip that starts and ends in the same port. Some nationalities get relaxed document rules on closed loops — but a missed ship or medical stop always ends better with a full passport aboard.
- Cabin, main meals and the ship itself. Usually not included: drinks, wifi, excursions, speciality restaurants, gratuities and transfers. The fare is where the arithmetic starts, not where it ends.
- The surcharge for one person occupying a two-person cabin — often 50–100% of the fare. A few ships carry dedicated solo cabins that avoid it; they sell out first.
- The weeks either side of a region's peak — May or September in the Mediterranean, early May or late September for Alaska. Same itinerary, thinner crowds, better fares, slightly moodier weather.
Life on board
The daily vocabulary of the ship itself.
- The compulsory safety briefing before or at sailaway: where your assembly station is and how the lifejackets work. On modern ships it is mostly done via app and a short check-in at your station — do it immediately, because the crew will chase you until it is done.
- A full day without a port. The ship becomes the destination: pool decks fill by ten, the daily programme runs dense, and the spa charges peak prices. Sea days are what the offline downloads and the book were packed for.
- The hour-by-hour schedule delivered each evening for the next day, on paper or in the app. The paper version plus a highlighter is still the best family coordination tool afloat.
- The key card that is also your onboard wallet and shore ID. Everything charges to it — which is why a lanyard earns its place and why checking the account every evening beats one big surprise at the end.
- The pool deck, usually with the buffet attached. The word is a leftover from classic liners; the sunburn is contemporary.
- The crew member who services your cabin daily and is the person to ask for extra pillows, ice or a mattress topper. Part of the gratuities pool — see the money section.
- Departure from a port, with the deck party to match on warm itineraries. Also the moment to set the phone to flight mode before maritime roaming starts billing.
- The dress-up evening — one or two per week, main restaurants only, one outfit covers all of them. Decoded in full on our formal-nights page.
- The extra-charge restaurants beyond the included main dining room and buffet. Worth it for an occasion; book the popular ones on day one or before sailing.
Port days
The words that decide how your time ashore actually works.
- Any scheduled stop on the itinerary. Check the fine print for arrival and departure times — a "day" in a port can be six hours — and for how far the pier really is from the place on the brochure.
- Where the ship anchors offshore and small boats shuttle you in. Costs time both ways, queues at peak, and can be cancelled in swell — and it is why water-friendly shoes beat white trainers on those mornings.
- A tour booked through the ship or independently. The ship's own excursions cost more but the ship waits for them if they run late; independent ones are cheaper and the all-aboard clock does not care.
- The deadline to be back on the ship, typically 30–60 minutes before departure — in ship's time, which is not always port time. The ship genuinely leaves; this is the single most expensive time-zone mistake in travel.
- A line-owned beach day on Caribbean and Bahamas routes. Food is usually included, extras are not, and shade goes early — it is the day the dry bag and reef-safe sunscreen were packed for.
- The day one voyage ends and the next begins. Boarding usually opens around midday — arrive early with the day bag packed for the afternoon, because checked luggage takes hours to reach the cabin.
Money on board
The words on the final-night bill, explained before you meet them there.
- A per-person, per-day amount added automatically to the onboard account, shared among the crew. It is adjustable at guest services and sometimes pre-payable — either way, budget for it as part of the fare.
- Money the line gives you to spend on the ship — from a promotion, a travel agent or a rebooking. It expires with the voyage and rarely covers gratuities; check what yours can actually buy.
- The running tab behind the cruise card, settled to your registered payment card at the end. Check it in the app every evening — billing mistakes are fixable mid-cruise and an argument at 7 a.m. on disembarkation day is not.
- A flat daily rate for drinks, usually required for every adult in the cabin for the whole voyage. Do the arithmetic honestly against your actual habits — the break-even is higher than the brochure implies.
- Government and harbour charges added to the fare at booking — the reason the checkout total exceeds the advertised price. Refunded pro-rata if a port is skipped, which is the fine print's one pleasant surprise.
- The terms you accept at booking: the line may change ports, skip them for weather, and is not liable for a missed embarkation. It is why arriving a day early and holding proper insurance are standing advice, not paranoia.