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Please see our time and date entry for updated and expanded guidance. See also Area & square footage Dates Dimensions Numbers & numerals Temperature Time...Read More

I.E. & E.G.

These abbreviations come from Latin: e.g.: exempli gratia, meaning “for example.” i.e.: id est, meaning “it is” Use a period after each letter, but no space. Always follow either with a comma. It’s often best to use them in parentheses,...Read More

Units of measurement

For an international audience, use both imperial and metric standards. Use the local preference with the secondary in brackets. If you need help converting between metric and non-metric units, just use Google – conversion tools are baked right into their services....Read More

Phone numbers

Always include “+” and the country code. For US numbers, we use the standard “+1 (XXX) XXX-XXXX” format. For UK numbers, we use the standard “+44 XXX XXXX XXXX format. For other international numbers, please use E.164 formatting, so that...Read More

Check out, checkout, & check-out

“Check out” (without a hyphen) is a verb. It’s what you do at check-out. “Check-out” (with a hyphen) is a noun. It’s the act of checking out of the hotel, or the time when you check out. “Checkout” is the cash register or the web page on which you pay for the room...Read More

Key card & keycard

A card that functions as a key is called a “keycard.” Use as one word, not two. Example Stop by the front desk to get an extra keycard....Read More

On site & on-site

“On-site” is an adjective. It comes before the noun it describes. “On site” is a prepostitional phrase. It comes after the noun it describes. “Onsite” is not a thing, but it looks like the name for a pretty rock. It’s preferable to...Read More

Time zones

Please see our time and date entry for updated and expanded guidance. See also Area & square footage Dates Dimensions Numbers & numerals Temperature Time  ...Read More


Always use “YouTube.” Never “You Tube,” “Youtube,” or “youtube.” See also Brands & partners Third party trademarks...Read More


This word is spelled “Christmas.” Example So here it is, Merry Christmas Everybody’s having fun Look to the future now It’s only just begun from Slade’s “Merry Xmas Everybody”...Read More

Would’ve, could’ve, & should’ve

All three of these words are contractions. Spelled out, they are “would have,” “could have,” and “should have.” Do not spell them as “woulda,” “coulda,” “shoulda,” or “would of,”...Read More

Widows & orphans

Where possible, ensure that your final word won’t sit by itself on a new line. Know, also, that we can’t always control for this, especially when our content adjusts to different screen sizes. Tip Pay attention to how your words will be presented. If your...Read More

That & who

“Who” refers to people. “That” refers to anything else. This is a common mistake to make in spoken English, so you may need to pay close attention to notice it in your writing. Example Avoid: Feel free to pick up a keycard for any other guest...Read More


When describing a room’s view, always use two words. Do not hyphenate. For example: Beach view City view Ocean view Resort view Sea view...Read More

Branding services & features

Many services and features we create for the Web and mobile devices are not fully branded (if at all) in guest-facing contexts. While we may refer to them by proper names while working on or talking about them among ourselves, customers may not notice how significant...Read More

America, The US, & the United States of America

“America” refers to two continents, containing a wide assortment of nations, people, and languages. Write “US” or “USA.” However, it is perfectly acceptable to call US residents “Americans.” Don’t use “The States.” It’s far...Read More

UK English vs. US English

Our readers are primarily accustomed to US English, so use “vacation” over “holiday,” “accommodations” (plural) instead of “accommodation” (singular) and “center,” “color” and “personalize” instead of “centre,” “colour” and “personalise.” For this reason, commas and...Read More

England, the UK, & Britain

The United Kingdom consists of four separate countries: England, Northern Ireland, Scotland, and Wales. Abbreviate it as “the UK.” The history, geography, and government of the United Kingdom have led to a handful of terms that may be confusing. Be mindful...Read More

TV, HDTV, flatscreen, UHD, & 4K

Does anyone even make CRT TVs anymore? You don’t have to specify that rooms have high-definition flatscreen TVs. You can just say “TV.” If you absolutely must clarify that guests won’t be watching a CRT TV, “HDTV” is preferable to “Flatscreen TV,”...Read More


Always use “TripAdvisor.” Never “Trip Advisor” or “Tripadvisor.” See also Brands & partners Third party trademarks...Read More

Third-party trademarks

Always obtain permission before using trademarked words and images on our websites. Check if there’s an existing agreement between Hilton and the relevant third party regarding usage; e.g., Serta, Coca-Cola, or the US Olympic Committee. If an agreement exists: Contact...Read More

The Coffee Bean & Tea Leaf®

Always capitalize as “The Coffee Bean & Tea Leaf®.” To type the registered trademark symbol (®) on a Mac, type option-r. The Windows shortcode is Alt-0174. But it’s probably easier to copy from a web search. See Also Brands & partners Third...Read More


Use Fahrenheit in the US, Metric internationally. It may be appropriate to use both measurements for a global audience. Example Enjoy average summer temperatures of 95°F (35°C). See also Units of measurement, Area, Dimensions...Read More

SEO keywords

Our users – not Google – are the priority. And they are Google’s priority. Search engines live and die by giving users what they want. They spend millions trying to understand what a person means – not just what they type. Optimize for users, and you’ll optimize...Read More

Semicolons as conjunctions

Semicolons are most often used in place of a conjunction in compound sentences. They demonstrate a close relationship between two independent clauses that could stand on their own. However, as Kurt Vonnegut said, “Semicolons represent nothing. All they do is...Read More


Trying to speak directly to your users? Questions are a great way to do that and convey a personable, casual tone. However, be careful to avoid posing questions a user could easily answer negatively (if in their heads), especially when it regards to our offerings....Read More

Place names & directions

Use capital letters for official place names like North Carolina and South Africa and commonly-recognized regions like Midlands or the American South, but lower case for general areas defined by compass points, such as the north, the southeast and the southwest. In UK...Read More


If you spell out the number, spell out “percent.” If you use the numeral, use the symbol “%.” Examples Four percent 11% See also Numbers & numerals...Read More

Oxford comma

Sometimes called the serial comma. We recommend using the Oxford comma in a series of three or more terms with a single conjunction. Use a comma after the first item and in front of the conjunction: To avoid confusion, use a comma if an item in the series requires a...Read More

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