“Thru” vs. “Through”—Which One Should You Use?

If you’ve ever wondered whether to write thru or through, you’re not alone. English learners often see both forms and get confused.

Don’t worry—Midoo AI will make it simple for you today. Both are real words, but they are not always used in the same way.

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Through – The Standard Spelling

Through is the correct and formal spelling. It’s used in all kinds of writing: academic, business, and everyday English.

Examples:

  • We drove through the city.
  • She worked hard through the night.
  • The ball went through the window.
  • He got the job through his friend’s recommendation.
  • We read through the entire book.

👉 Tip: Always use through in school, work, and professional writing.

Thru – The Informal Shortcut

Thru is an informal spelling. You’ll see it in casual writing, text messages, or signs where space is limited (like “Drive-Thru”). It’s not wrong, but it’s not standard in formal English.

Examples:

  • Let’s go to the Drive-Thru for dinner.
  • I read thru your message quickly.
  • She scrolled thru her phone.

👉 Tip: Use thru only in casual contexts or when copying signs/branding.

Quick Trick to Remember

  • Through = Always safe, correct everywhere.
  • Thru = Casual, modern, mostly in signs or texting.

One sentence to compare:

  • I went through the tunnel (formal).
  • I grabbed coffee at the Drive-Thru (casual).

Final Tip from Midoo AI

If you’re ever unsure, choose through. It’s the proper spelling for all situations. Thru is fine for texting or signs, but it won’t work in formal writing.

FAQS:

Q1: Is “thru” wrong?

No, it’s not wrong—it’s just informal. Through is always correct, while thru is casual.

Q2: Can I use “thru” in an essay or business email?

No. Stick to through in professional or academic writing.

Q3: Why do some signs use “Drive-Thru”?

Because “thru” is shorter, easier to read quickly, and fits better on signs.

Q4: Do British and American English treat “thru” differently?

Not really. Through is standard everywhere. Thru is mainly seen in the U.S. on signs or in casual digital writing.

Q5: Which should English learners focus on?

Focus on through. Once you’re comfortable, you’ll recognize thru in casual settings.