1000 Formal and Informal Words List in English

In this blog post, we will explore the differences between formal and informal English and how they impact communication. Understanding when to use each form is crucial to sounding professional or casual, depending on the situation. This lesson will introduce you to 1000 formal and informal words that will enhance your daily conversations in English. Mastering this distinction will help you navigate both professional and casual environments with ease. For a deeper dive into language skills, download a free PDF book of this lesson from the bottom of the page.

Table of Contents

1000 Formal and Informal Words List

Formal	Informal	Formal	Informal
Check	Verify	Come after	Follow
Anyways	Nevertheless	Cheap	Inexpensive
Adequate	Sufficient	Link up	Connect
Break down	Fail/Collapse	Bright/smart	Intelligent
Help	Assist	Ask	Enquire
Makeup	Fabricate	Keep	Preserve
Call on	Visit	Demand	Request
Make out	Discern	Bring in	Introduce
A bit	A little	Look for	Seek
Call on	Visit	Go after	Pursue
Expect	Anticipate	Young	Youthful
Also In	Addition	Go on	Continue
Wrong	Incorrect	Hungry	Famished
Really big	Considerable	Free	Liberate
Speed up	Accelerate	Get by	Survive
Look up to	Respect	Give	Donate
At first	Initially	Good	Positive
Talk into	Persuade	Fight	Combat

Formal vs. Informal Words List in English

Formal and Informal Words

Formal	Informal	Formal	Informal
Beginning	Start	Better	Improved
Put/ set down	Deposit	Tough	Difficult
Worse	Inferior	Use	Utilize
Death	Demise	Drop out	of Withdraw
Tell	Inform	Chance	Opportunity
Good for	Beneficial	Describe	Depict
Settle for	Choose	Lively	Energetic
Ask Out	Invite	Get by	Survive
Get	Receive	Sick	Ill
Let	Permit	Can Is	Capable of
Throw out	Eject	Rich	Wealthy
Describe	Depict	Expect	Anticipate
Old	Elderly	Mend	Repair
Go on	Continue	Enough	Sufficient
Belongings	Possessions	Throw away	Discard
Put in	Insert	Big/Large	Enormous
Right	Correct	Free	Release
Try out	Test	Go before	Precede

1000 Formal and Informal Words List

Examples of Formal and Informal Words

Formal	Informal	Formal	Informal
Cheap	Inexpensive	Maybe	Perhaps
Fork out	Pay (money)	Fall out	Quarrel
Buy	Purchase	Iron out	Solve
Get out	Escape	Okay, Ok	Acceptable
So	Therefore	Look like	Resemble
Go down	Decrease	Let	Allow
Block	Undermine	Dad	Father
Good for	Beneficial	Coincide	Agree
Get out	Escape	Danger	Peril
Come in	Enter	Go up	Increase
Childish	Immature	Can	Is capable of
End	Terminate	Deal with	Manage
Rack up	Accumulate	Danger	Peril
Explain	Disclose	Also	Additionally
Ease	Facilitate	Colloquialism	Slang
Avoid	Evade	Put off	Postpone
Call off	Cancel	Book	Reserve
Naked	Nude	Give	Donate

Formal and Informal Words List in English

Formal and Informal English

Formal	Informal	Formal	Informal
Book	Reserve	Away	Absent
Ease	Facilitate	Hit out at	Criticize
Go after	Pursue	Achieve	Accomplish
Chance	Opportunity	Pick up	Collect
Challenge	Test	Whole	Complete
Give	Donate	At Once	Immediately
Naked	Nude	Hungry	Famished
Check	Verify	Assurance	Guarantee
Arrangement	Agreement	Lack	Deficiency
Hope	Desire	Hurry	Haste, hasten
Thanks	Gratitude	Block	Undermine
Break out	Erupt	In the end	Finally
Big/Large	Enormous	See	Observe
Say no	Reject	Dirty/ polluted	Contaminated
Next/later	Subsequently	Empty	Vacant
Go	Depart	Away	Absent
Round	Circular	Choose	Select
Clear	Transparent	Drop out of	Withdraw