Formal and Informal Vocabulary Words List 2024

In simple terms, the Formal English is when we use it in writing essays for school, cover letters to apply for jobs, or emails and letters at work.

Whereas Informal English is when we use language with friends, children, and relatives or at an informal place, where the environment is very casual, free and does not follow any particular rules or regulations, regardless of style, or dress code for your any event party.

Formal and informal language meets variety of needs. The tone, word choice, and style of writing change between the two styles. Formal language is no closer to home than informal language. It is used for writing professional or scholarly purposes such as college activities. Formal language does not use idioms, omissions, or personal pronouns, for example, ‘I’ or ‘We’.

Informal language is simple and uncomplicated. Used when talking to friends or family either recorded as a copy in a paper or conversation. Used for compiling individual messages, instant messaging, and other business letters. The voice of the informal language is much closer to home than the official language.

Now let’s see below how it works. We have divided the list below into categories: verbs, transitions, emphasis words, abbreviations, and slang.

Formal And Informal Vocabulary Words in English

say sorryapologize, apologetic
go upIncrease, rise
go downDecrease, down
set upEstablish
look atExamine
blow upExplode
find outDiscover
bring aboutCause
put offpostpone, delay
rack upAccumulate
make upFabricate
stand forRepresent
find outdiscover, ascertain
leave outOmit
point outIndicate
go againstOppose
get in touch withContact
It’s aboutIt concerns, It’s in regards to
need toRequired
think aboutConsider
put upTolerate

Following is a list of some formal and informal transition words:

Plus/AlsoMoreover/ Furthermore
AlsoIn addition, Additionally
ASAPas soon as possible/at your earliest convenience
Okay, OKAcceptable
In the meantimeIn the interim
I thinkIn my opinion,
In the end,Finally
To sum upIn conclusion,
In a nutshell/BasicallyTo summarize,

Following is a list of some formal and informal emphasis words:

lots of/ a lot ofmuch, many
tons of, heaps oflarge quantities of, a number of
totallycompletely, strongly
really, veryDefinitely

Following is a list of some formal and informal letter expressions:

Hi Robert,Dear Sir or Madam
Just wanted to let you know…I am writing to inform you…
Love,Yours sincerely, Yours faithfully,
Yours Truly, Best regards, kind regards 
Hope to hear from you soonI look forward to hearing from you
You can call me if you need anythingPlease do not hesitate to contact me

Following is a list of some formal and informal abbreviations:

ASAPas soon as possible
cellcell phone

Following is a list of some formal and informal slang words:

really bigconsiderable

Quick Links

  1. Business English Vocabulary Words with Meanings
  2. Business Abbreviations and Acronyms for Corporates

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