tail gate (tailgate)

Writers often split words that have become single units. Tailgate is a closed compound: write it as one word. Using tail gate or tail-gate looks like a spelling error to most readers.

Quick answer

Use tailgate as one word. Noun and verb both appear as tailgate (the truck's tailgate; fans tailgated before the game). Avoid writing tail gate or tail-gate.

Noun: tailgate - the rear door of a vehicle or a parking-lot social gathering
Verb: tailgate - to follow too closely or to host a parking-lot party
Wrong: tail gate - nonstandard spacing

What 'tailgate' means and why it's one word

Tailgate names a single object (the hinged rear door of a vehicle), a social event (tailgate party), or an action (to tailgate another vehicle). Many compounds start as two words or hyphenated forms and later close up; tailgate has closed in standard usage and dictionaries list it as one word.

Formation: tail + gate → tailgate (closed compound)
Applies to both noun and verb without a spelling change
Figurative uses (e.g., tailgate party) follow the closed form

Wrong: Please put the cooler on the tail gate before we leave.
Right: Please put the cooler on the tailgate before we leave.

Spacing and hyphenation rules

English compounds appear in three patterns: open (post office), hyphenated (mother-in-law), and closed (notebook). Over time many compounds close; vehicle parts and fixed single objects often become closed. Tailgate is closed.

If a compound names one object or a fixed concept, prefer the closed form when a dictionary lists it that way.
Hyphens belong to new or ambiguous compounds or where clarity demands them - not to established closed compounds.
If unsure, check a reputable dictionary or corpus of usage.

Wrong: We lowered the tail-gate to load the boxes.
Right: We lowered the tailgate to load the boxes.

Grammar: noun, verb, and compound behavior

Tailgate functions as both noun and verb with the same spelling.

Noun: the tailgate (object or event) - The tailgate is dented.
Verb: to tailgate (party or follow closely) - Don't tailgate that car.
No hyphen or space is needed to convert between noun and verb.

Usage (noun): We sat on the tailgate and watched the sunset.
Usage (verb): Fans tailgated outside the stadium.

Real usage and tone: work, school, and casual writing

The single-word tailgate is correct across registers. What changes is tone, detail, and whether you define the term for readers.

Work: concise, direct, avoid slang
School: explanatory, may include definitions or context
Casual: contractions and idioms are fine; still use tailgate as one word

Work: The delivery team should secure the tailgate before moving the pallets.
Work: Please include "tailgate operation" in the safety checklist.
Work: The technician reported a malfunctioning tailgate sensor.
School: For the lab trip, load materials into the truck's tailgate area and fasten the straps.
School: In the essay, describe how the tailgate scene shows community bonding.
School: The author used "tailgate party" as a cultural example in class.
Casual: We tailgated all afternoon and grilled burgers on the tailgate.
Casual: Mind the tailgate when you get in - it's muddy back there.
Casual: That was the best tailgate I've ever been to.

Try your own sentence

Check the whole sentence, not just the phrase. Context usually makes the right form obvious.

Examples: common wrong/right pairs you'll actually encounter

Copy these corrections or use them as patterns when you rewrite your own sentences.

Wrong: Please load the bags into the tail gate of the truck.
Right: Please load the bags into the tailgate of the truck.
Wrong: Let's have a picnic in the tail gate area.
Right: Let's have a picnic in the tailgate area.
Wrong: We set the cooler on the tail gate and sat on the bumper.
Right: We set the cooler on the tailgate and sat on the bumper.
Wrong: The delivery driver forgot to latch the tail gate.
Right: The delivery driver forgot to latch the tailgate.
Wrong: Fans tailgated in the lot; their tail gate was covered in stickers.
Right: Fans tailgated in the lot; their tailgate was covered in stickers.
Wrong: We need to repair the tail gate sensor before the inspection.
Right: We need to repair the tailgate sensor before the inspection.

Rewrite help: quick fixes and templates

The fastest fix is to close tail gate into tailgate. If the sentence still sounds off, use a short rewrite template for the context.

Template (work): [Action] the tailgate [purpose]. - e.g., Secure the tailgate before transit.
Template (school): [Define term], then [main point]. - e.g., The tailgate (rear door of the truck) stored supplies.
Template (casual): [Verb] + tailgate + [activity]. - e.g., We tailgated and grilled.

Rewrite (work): Original: The team checked the tail gate to make sure it was locked.
Rewrite: The team checked the tailgate to make sure it was locked.
Rewrite (school): Original: For the field trip, place equipment on the tail gate.
Rewrite: For the field trip, place equipment on the tailgate behind the truck.
Rewrite (casual): Original: We left the drinks on the tail gate.
Rewrite: We left the drinks on the tailgate.

A quick memory trick and practice sentences

Mnemonic: Picture the truck's tail and gate fused together into a single movable unit - tailgate. That visual helps you remember there's no space.

Practice with other vehicle parts: headlight, taillight, tailgate.
Write short sentences: I sat on the tailgate. I checked the taillight. I closed the hatch.
If a single-word synonym fits (e.g., hatch), that supports the closed form.

Practice: She propped the cooler on the tailgate and opened a cold drink.

Similar mistakes to stop repeating

Writers who split tailgate often split other closed compounds. Watch for these common errors and consult a dictionary when unsure.

Common closed compounds: backpack (not back pack), taillight (often not tail light), touchdown (not touch down in the noun sense).
Some compounds stay open or hyphenated depending on meaning and style (e.g., high school is open; mother-in-law is hyphenated).
Look up doubtful forms rather than guessing; usage shifts over time.

Wrong: Please put the books in a back pack.
Right: Please put the books in a backpack.
Wrong: The car's tail light is broken.Right (common): The car's taillight is broken.

FAQ

Is tailgate one word or two?

Tailgate is one word for both the noun and verb. Writing tail gate as two words is nonstandard in most contexts.

Can I write tail-gate with a hyphen?

No. Tail-gate with a hyphen is unnecessary for this established term. Reserve hyphens for new or ambiguous compounds or to improve clarity.

How do I correct 'tail gate' in a long sentence without changing tone?

Close the words to tailgate first. If the sentence still feels awkward, move tailgate closer to its verb or noun or shorten the phrase using the templates above.

Should I change 'tail gate' in a student essay or casual post?

Yes. Correcting tail gate to tailgate improves clarity and looks correct in both formal and casual writing.

How can I check multiple instances of 'tail gate' in my document quickly?

Search your document for "tail gate" and replace with "tailgate," then read each sentence to confirm the meaning stayed the same. A spellchecker or grammar tool can also flag compound-word spacing issues.

Want to check your sentences fast?

Run a quick search for "tail gate" and review each hit. Small spacing errors are easy to miss in long drafts, so spot-checking or running a grammar tool will save time.