Instillation vs Installation

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What’s the difference between them?



adding the liquid drop by drop.


1. The nurse carefully performed the instillation of eye drops into the patient's affected eye to treat the infection.

2. In the art class, the instructor demonstrated the technique of color blending through the instillation of paint onto the canvas drop by drop.

3. The scientist conducted an experiment that required the precise instillation of a chemical solution into a test tube for accurate measurements.



the action or process of installing someone or something, especially a computer program or system.


1. The installation of the new computer system took longer than expected.

2. The installation process was simple and straightforward.

3. We hired a professional for installation of the air conditioning unit.

Learn similar and opposite words to spot the difference




1. Implantation

2. Inoculation

3. Infusion

4. Insertion

1. Pouring

2. Splashing

3. Gushing

4. Flooding


1. Assembling

2. Setting up

3. Installing

4. Commissioning

5. Putting in place

1. Removal

2. Disassembly

3. Dismantling

4. Uninstalling

5. Taking Apart

Tricks for mastery

Useful tips to understand the difference between confusing words "Instillation", "Installation".

1. Instillation is a noun that refers to the act of pouring a liquid into a vessel or machine.

2. Instillation is also used to refer to the process of introducing a new system or belief into a society.

3. Instillation is commonly used in medical and industrial contexts.

4. Installation, on the other hand, is a noun that refers to the act of installing something.

5. Installation can refer to the process of fixing something in place, such as putting up a fence or installing a new computer system.

Practice English with the Promova app and avoid misusing confusing words

Frequently asked questions

When should the word 'Instillation' be used?

The word 'Instillation' is usually used when referring to the act of pouring a liquid into a vessel or machine.

When is the appropriate context for using the word 'Installation'?

The word 'Installation' is usually used when referring to a process, or a series of events, that are necessary in order to put something in place. An example of this would be the installation of a new computer system, or the installation of a new security system.

Do the two words share the same pronunciation?

No, the two words are not pronounced the same. 'Instillation' is pronounced with a short 'i' as in 'sit', while 'Installation' is pronounced with a long 'i' as in 'site'.

What are some common mistakes people make when using these words?

One of the most common mistakes people make when using these words is confusing the two terms. People often use 'Installation' when they should use 'Instillation', or vice versOther common mistakes include misspelling the two words, as well as failing to pronounce the words correctly.

Fill in the gaps to check yourself

1. I had to wait for the technician to complete the software _____ before using my new computer.

2. The patient required the _____ of eye drops every four hours to alleviate the symptoms.

3. The art exhibit had a unique _____ that required viewers to walk through different rooms.

4. During the procedure, careful _____ of the solution was crucial to prevent any discomfort.

5. After purchasing the game online, the _____ process took about 30 minutes.

6. The nurse demonstrated the correct method of _____ for the patients medication.

1. Answer: installation

Explanation: The context here is about setting up software on a computer, making installation the appropriate choice.

2. Answer: instillation

Explanation: The use of eye drops and the mention of a frequency suggests a medical context where a liquid is added drop by drop. Hence, instillation is the correct choice.

3. Answer: installation

Explanation: The context of an art exhibit suggests a setup or arrangement, so installation is the correct term.

4. Answer: instillation

Explanation: The mention of a solution and the need for care in its administration suggests adding a liquid drop by drop. Thus, instillation is appropriate.

5. Answer: installation

Explanation: The reference to a game online and a time frame for setup implies the action of setting up software, making installation the correct choice.

6. Answer: instillation

Explanation: The context is about a medical procedure and the administration of medication in a specific manner, suggesting the drop by drop addition of a liquid. Therefore, instillation is the correct term.

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List of Commonly Confused Words

Finding your way around the English language can be hard, especially since there are so many confusing words and rules. So, a list of the most confusing words in English is an extremely useful tool for improving language accuracy and sharing the ideas clearly.