Use hyphens in compound adjectives

What is a Compound Adjective?

A compound adjective is two or more words joined together to describe a noun.
👉 We use a hyphen (-) to connect these words.

Example:
a well-known actor
(“well” + “known” work together to describe actor)

Why Do We Use Hyphens in Compound Adjectives?

Hyphens help to:
⭐ Make the meaning clear
🧠 Avoid confusion
📖 Improve readability

Example:
🔹 a small-business owner (one business)
a small business owner (the owner is small!)

When to Use Hyphens in Compound Adjectives

Use a hyphen when the compound adjective comes BEFORE a noun

Examples:
🌟 a five-star hotel
🎬 a well-written script
👶 a ten-year-old boy

Do NOT use a hyphen when the adjective comes AFTER the noun

Examples:
The hotel is five star.
The script is well written.

Hyphens with Numbers & Fractions

Use hyphens with numbers that act as adjectives before a noun:
🧒 a 12-year-old girl
🚗 a 10-kilometre-long road
🍰 a two-thirds slice of cake

But no hyphen when not used as an adjective:
She is 12 years old.

Common Compound Adjectives
Compound AdjectiveExample
well-knowna well-known singer 🎤
part-timea part-time job 💼
full-lengtha full-length movie 🍿
high-qualityhigh-quality products 🛍️
open-mindedan open-minded person 🤝
Avoid Hyphens with -ly Adverbs

If the first word ends in -ly, no hyphen is needed.

Examples:
✅ a highly skilled doctor
✅ a quickly prepared meal

Not ❌ highly-skilled doctor

Be Careful! – Misleading Meaning Without Hyphens

Hyphens change meaning!

Without Hyphen ❌With Hyphen ✅Meaning
small headed boysmall-headed boysmall head
man eating chickenman-eating chickenchicken that eats humans! 😱
Quick Tips (Remember These!)

🔸 If two or more words describe 1 noun → Use a hyphen
🔸 If the adjective comes after the noun → No hyphen
🔸 No hyphen after -ly adverbs
🔸 Hyphenate number-adjectives before nouns


Let’s practice!🖊️