How Do You Spell 80? The Short Answer
Let's settle the headline question first, because that's why you clicked. How do you spell 80? You spell it eighty. Not "eightey," not "eighty," not "eighy"—just e-i-g-h-t-y.
It's one of those words that looks like it should be harder than it is, mostly because the number 8 itself, "eight," is already a bit of a spelling gauntlet with its silent "gh." Once you've nailed "eight," though, "eighty" is simply that same word plus a "y" at the end. No new tricks, no hidden traps.
You're just adding one letter.
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How Do You Spell the Number 80? Breaking It Down Letter by Letter
Sometimes the fastest way to lock a spelling into memory is to break it into pieces. Here's 80, dissected:
- E — as in the start of "eight"
- I — the second letter, easy to forget
- G — often the letter people accidentally skip
- H — pairs with the G to form that classic "gh" combo
- T — the sound you actually hear
- Y — turns "eight" into "eighty"
Say it slowly out loud: eigh-ty. Notice that the "gh" is silent; it doesn't add a sound, it's just there for historical spelling reasons (English loves to do this). That silent "gh" is the single biggest reason people misspell numbers like eight, eighteen, and eighty.
How Do You Spell 80 in Words? Full Context and Usage
Beyond the standalone word, how you spell 80 in words also depends on context: are you writing a plain number, a year, an ordinal, or part of a bigger number? Here's a quick reference table:
| Number | Spelled Out |
|---|---|
| 80 (cardinal number) | Eighty |
| 80th (ordinal number) | Eightieth |
| 80s (decade or age range) | Eighties |
| 81 | Eighty-one |
| 85 | Eighty-five |
| 89 | Eighty-nine |
| 180 | One hundred eighty |
| 800 | Eight hundred |
| 1980 (a year) | Nineteen eighty |
| 80% (percentage) | Eighty percent |
Notice the pattern with compound numbers: eighty-one, eighty-two, eighty-three, and so on all the way to eighty-nine. Always hyphenate between "eighty" and the second word. This is a hard grammar rule in English, not a stylistic choice — compound numbers from 21 to 99 always get a hyphen when written out.
Eightieth: The Word People Get Wrong Most Often
If “eighty” is the cardinal number, eightieth is its ordinal cousin — used for someone’s 80th birthday, an 80th anniversary, or finishing in 80th place. And this is where a lot of people stumble, because the pattern isn’t simply “eighty” plus “th.”
Here’s the rule: when a number ending in “y” becomes an ordinal, the “y” changes to “ie” before adding “th.” So:
- Twenty → Twentieth
- Thirty → Thirtieth
- Forty → Fortieth
- Eighty → Eightieth
- Ninety → Ninetieth
Once you see the pattern across all the “-ty” numbers, eightieth stops looking like an oddball and starts looking like exactly what it is: a totally predictable member of a family.
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Quick Recap: Everything You Need to Remember
Let’s bring it all together. How do you spell 80? You spell it eighty. Here’s the cheat sheet one more time:
- 80 = Eighty
- 80th = Eightieth
- 80s = Eighties
- 81–89 = Eighty-one through Eighty-nine (always hyphenated)
- The tricky part is the silent “gh,” inherited from “eight”
- Ordinals swap the final “y” for “ie” before adding “th”
And that’s really it. The next time someone asks you, “how do you spell the number 80,” you won’t just have the answer — you’ll have the whole story behind it. Eighty down, only ninety-nine more numbers to master.
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