In order to improve your English skills, it is important to learn the differences between informal and formal words. This will help you communicate more effectively in different situations. Here is a list of 150 commonly used informal and formal words to get you started.
Below is the list of 150 formal and informal vocabulary words:
| Informal | Formal |
| Buy | Purchase |
| Mad | Insane |
| Hurt | Damage |
| Job | Occupation |
| Point out | Indicate |
| All right | Acceptable |
| Death | Demise |
| Eager | Avid |
| Mainly | Principally |
| Put in | Insert |
| Get | Obtain |
| Put up | Tolerate |
| Look at | Examine |
| Lucky | Fortunate |
| But | However |
| Sick | Ill |
| Sorry | Apologize |
| Need to | Required |
| Put up | Tolerate |
| Stand for | Represent |
| Call on | Visit |
| Start | Commence |
| Avoid | Evade |
| Seem | Appear |
| Worse | Inferior |
| Shorten | Decrease |
| Show | Illustrate |
| Also | Moreover |
| Cheap | Inexpensive |
| Tell | Inform |
| Buy | Purchase |
| Get in touch with | Contact |
| Give up | Quit |
| Bad | Negative |
| Chance | Opportunity |
| Wrong | Incorrect |
| Put off | Postpone |
| See | Observe |
| Anyway | Nevertheless |
| Leave out | Omit |
| It’s about | It concerns |
| Let | Allow |
| Rack up | Accumulate |
| Mad | Insane |
| Make up | Fabricate |
| Refer to | Consult |
| Blow up | Explode |
| Empty | Vacant |
| Empty | Vacant |
| Keep | Retain |
| Show up | Arrive |
| Buy | Purchase |
| Find out | Ascertain |
| Give | Provide |
| Set up | Establish |
| Lack | Deficiency |
| Use | Utilize |
| Check | Verify |
| Have to | Must |
| Help | Assist |
| Clear | Transparent |
| Mend | Repair |
| Hurt | Damage |
| Live | Reside |
| Keep | Preserve |
| Show | Demonstrate |
| Hungry | Famished |
| I think | In my opinion |
| Look into | Investigate |
| Dim | Indistinct |
| Get | Obtain |
| Free | Liberate |
| Tell | Inform |
| Put off | Delay |
| Whole | Complete |
| Ask | Enquire |
| But | However |
| Whole | Entire |
| Say no | Reject |
| Worse | Inferior |
| End | Finish |
| Get | Receive |
| Dad | Father |
| Hopeless | Futile |
| Idea | Notion |
| Ring up | Call |
| Sight | Vision |
| Think about | Consider |
| Dim | Indistinct |
| Need | Require |
| Free | Release |
| Let | Permit |
| Lack | Deficiency |
| Thanks | Gratitude |
| Seem | Appear |
| Set up | Establish |
| Seem | Appear |
| Sorry | Apologies |
| Use | Consume |
| Live | Reside |
| Lively | Energetic |
| Ask for | Request |
| Dare | Challenge |
| Want | Desire |
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