If you are looking for a clear, direct answer: words that start with -ly are actually words that end with the suffix -ly, not start with it. The title refers to a common search pattern where learners want to understand the -ly suffix that appears at the end of many English words. This guide gives you a simple list of common -ly words, their meanings, and how to use them correctly in writing, email, and everyday conversation.
Quick Answer: What Are -ly Words?
-ly is a suffix added to adjectives to form adverbs. It tells you how something is done. For example, “quick” becomes “quickly” (in a quick way). Most -ly words are adverbs, but a few are adjectives (like “friendly” or “lovely”). This guide focuses on the most useful ones for beginners.
Simple List of Common -ly Words with Meanings
Here are the most practical -ly words for everyday use. Each entry includes the base word, the -ly form, and a simple meaning.
| Base Word | -ly Word | Simple Meaning |
|---|---|---|
| quick | quickly | in a fast way |
| slow | slowly | in a not fast way |
| careful | carefully | with attention and caution |
| happy | happily | in a joyful way |
| sad | sadly | in a sorrowful way |
| easy | easily | without difficulty |
| soft | softly | in a gentle way |
| loud | loudly | in a noisy way |
| polite | politely | with good manners |
| honest | honestly | in a truthful way |
| friend | friendly | kind and pleasant (adjective) |
| love | lovely | very nice or beautiful (adjective) |
| week | weekly | happening every week |
| month | monthly | happening every month |
| year | yearly | happening every year |
Comparison Table: Adjective vs. -ly Adverb
Many learners confuse adjectives and adverbs. This table shows the difference clearly.
| Adjective | -ly Adverb | Example Sentence |
|---|---|---|
| quick | quickly | She is a quick runner. / She runs quickly. |
| careful | carefully | He is a careful driver. / He drives carefully. |
| happy | happily | They are happy children. / They play happily. |
| soft | softly | The cat has soft fur. / She speaks softly. |
| polite | politely | She is a polite girl. / She asks politely. |
Key point: Use the adjective after verbs like “is,” “are,” “looks,” or “feels.” Use the -ly adverb to describe an action verb like “run,” “speak,” or “drive.”
Formal vs. Informal Tone
Understanding when to use -ly words can help you sound natural in different situations.
Formal Tone (Emails, Reports, Presentations)
In formal writing, -ly adverbs are common and expected. They add precision and professionalism.
- Example: “Please respond to the email promptly.” (Formal)
- Example: “The report was thoroughly reviewed.” (Formal)
Informal Tone (Conversation, Texting, Casual Notes)
In casual conversation, people often drop the -ly or use shorter forms. This is not grammatically wrong, but it is less formal.
- Example: “Drive safe.” (Informal) vs. “Drive safely.” (Formal)
- Example: “Come quick!” (Informal) vs. “Come quickly!” (Formal)
Nuance: Using the full -ly form in conversation can sound stiff. In writing, especially for work or school, it is usually better to use the -ly form.
Natural Examples in Context
Here are real-life sentences showing how -ly words work in different situations.
- Email: “I will happily attend the meeting on Friday.”
- Conversation: “Please speak slowly; I am still learning English.”
- Writing: “She carefully checked every number in the report.”
- Instruction: “Press the button gently to avoid damage.”
- Description: “The garden looks lovely in spring.” (adjective)
Common Mistakes with -ly Words
Even advanced learners make these errors. Here are the most frequent ones and how to fix them.
Mistake 1: Using an Adjective Instead of an Adverb
Wrong: “She runs quick.”
Right: “She runs quickly.”
Why: “Runs” is an action verb, so you need an adverb (“quickly”) to describe how she runs.
Mistake 2: Adding -ly to Words That Don’t Need It
Wrong: “I feel badly.” (when you mean you are sorry)
Right: “I feel bad.” (when you mean you are sorry or unwell)
Why: “Feel” is a linking verb, so it takes an adjective (“bad”), not an adverb. “Badly” means “in a poor or inadequate way,” as in “He plays the piano badly.”
Mistake 3: Forgetting Irregular Forms
Not all adverbs end in -ly. Some are irregular.
- Good becomes well (not “goodly”). Example: “She speaks English well.”
- Fast stays fast (not “fastly”). Example: “He runs fast.”
- Hard stays hard (not “hardly”). Example: “She works hard.” (“Hardly” means “almost not.”)
Mistake 4: Overusing -ly Words in Speech
In casual conversation, using too many -ly words can sound unnatural. For example, “I really truly honestly completely agree” is too much. Pick one or two for emphasis.
Better Alternatives and When to Use Them
Sometimes a single -ly word is fine, but a stronger verb can make your writing more vivid. Here are some alternatives.
| -ly Word | Better Alternative | When to Use It |
|---|---|---|
| quickly | dashed, rushed, sped | In storytelling or descriptive writing. |
| slowly | crept, inched, ambled | To create a specific mood or image. |
| carefully | meticulously, precisely | In formal or technical writing. |
| happily | joyfully, cheerfully | To add emotional depth. |
| sadly | mournfully, regretfully | In emotional or reflective writing. |
When to use the -ly word: Use the simple -ly form for clarity in everyday writing, emails, and instructions. Use stronger alternatives when you want to be more descriptive or creative.
Mini Practice: Test Your Understanding
Try these four questions. Answers are below.
Question 1: Choose the correct word: “He drives very (careful / carefully).”
Question 2: Fill in the blank: “She smiled _____ when she saw the gift.” (happy / happily)
Question 3: Is this sentence correct? “I feel badly about the mistake.”
Question 4: Which is more formal? “Please respond quick” or “Please respond quickly”?
Answers:
- Carefully – because “drives” is an action verb.
- Happily – because “smiled” is an action verb.
- No – it should be “I feel bad.” “Badly” means “in a poor way.”
- “Please respond quickly” – it uses the full adverb form.
FAQ: Common Questions About -ly Words
1. Do all adverbs end in -ly?
No. Many common adverbs do not end in -ly, such as “fast,” “well,” “hard,” “late,” and “early.” Always check if a word is an adverb by seeing if it describes a verb, adjective, or another adverb.
2. Can -ly words be adjectives?
Yes. Some words ending in -ly are adjectives, not adverbs. Examples include “friendly,” “lovely,” “silly,” “ugly,” and “lonely.” These describe nouns. For instance, “She is a friendly person” (adjective) vs. “She speaks friendly” (incorrect – use “in a friendly way”).
3. How do I know when to use an -ly word in conversation?
In casual conversation, native speakers often drop the -ly for common words like “quick,” “slow,” and “safe.” For example, “Come quick!” is common. However, in writing, especially for work or school, use the full -ly form to be clear and correct.
4. What is the difference between “hard” and “hardly”?
“Hard” as an adverb means “with a lot of effort.” Example: “She works hard.” “Hardly” means “almost not” or “barely.” Example: “I hardly know him.” These are very different meanings, so be careful not to confuse them.
Final Tips for Using -ly Words
To use -ly words naturally, follow these simple guidelines.
- In emails and formal writing: Use the -ly form for clarity and professionalism. For example, “Please review the document carefully.”
- In conversation: You can often drop the -ly for common words, but keep it for less common ones. For example, “Drive safe” is fine, but “She spoke politely” is better than “She spoke polite.”
- In creative writing: Use -ly words sparingly. Instead of “He ran quickly,” try “He sprinted” or “He dashed.”
- When learning new words: Always check if the word is an adjective or an adverb. This will help you use it correctly in sentences.
For more word lists and practice, explore our Beginner Word Lists or check out Positive and Useful Words for everyday vocabulary. If you have questions, visit our FAQ page or contact us. For more on how we create content, see our Editorial Policy.
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