Formal and informal language serve different purposes. The tone, the choice of words and the
way the words are put together vary between the two styles. Formal language is less personal
than informal language. It is used when writing for professional or academic purposes like
university assignments. Formal language does not use colloquialisms, contractions or first person
pronouns such as ‘I’ or ‘We’.
Informal language is more casual and spontaneous. It is used when communicating with friends or
family either in writing or in conversation. It is used when writing personal emails, text messages
and in some business correspondence. The tone of informal language is more personal than
formal language.
Examples of formal and informal language are shown below:
Contractions
Informal: The improvements canʼt be introduced due to funding restrictions.
Formal: Improvements cannot be introduced due to funding restrictions.
Informal: I donʼt believe that the results are accurate.
Formal: The results are not believed to be accurate.
Informal: The research project wonʼt continue next year.
Formal: The research project will not continue next year.
Phrasal verbs
Informal: The balloon was blown up for the experiment.
Formal: The balloon was inflated for the experiment.
Informal: The patient got over his illness.
Formal: The patient recovered from his illness.
Informal: The results of the study were mixed up.
Formal: The results of the study were confused.
Slang/Colloquialism
Informal: The mob was very rowdy during the protest against cuts to university funding.
Formal: The crowd was very rowdy during the protest against the cuts to university funding.
Informal: Lecturers still count on students to use correct grammar and punctuation in essays.
Formal: Lecturers expect students to use correct grammar and punctuation in essays.
Informal: It was raining cats and dogs.
Formal: It was raining very heavily.
First person pronouns
Informal: I considered various research methods for the study.
Formal: Various research methods were considered for the study.
Informal: We believe the practice is unsustainable.
Formal: It is believed the practice is unsustainable.
Informal: During the interview I asked students about their experiences.
Formal: During the interview students were asked about their experiences.
Acronyms
TAFE Technical and Further Education
ANZAC Australian and New Zealand Army Corps
QANTAS Queensland and Northern Territory Aerial Services
Initialisms
UTS University of Technology Sydney
ISO International Standards Organisation
OECD Organisation for Economic Cooperation and Development
The first time an acronym or initialism is used in an essay, it is acceptable to write the name in full
with the acronym or initialism in brackets after it. Every subsequent time it is used the acronym or
initialism can be used on its own. Commonly known acronyms such as ANZAC and QANTAS do not
need to be written in full.
If an acronym or initialism needs to be made into a plural, add a small ‘s’ to it without an
apostrophe.
