Quick answer: Adapt means to change or adjust something so it suits a new purpose or situation: We had to adapt the plan for the new budget. Adopt means to take something as your own or accept it formally: The committee adopted the new policy. When in doubt: ADAPT = change/modify; ADOPT = take as your own/accept. For a fuller definition, see the Cambridge Dictionary entry for ‘adapt’.
Comparison Table
| Word | Part of Speech | Meaning | Example |
|---|---|---|---|
| adapt | verb | to change or adjust something to fit a new situation or purpose | Plants adapt to their environment. |
| adopt | verb | to take something on as your own; to accept formally; to take a child into your family | They adopted a more flexible approach. |
Using Adapt
Adapt always involves change. You adapt something — or you yourself adapt — so that it fits a new situation, audience, or purpose. The original thing is modified, not simply accepted as it is.
The novel was adapted for the screen.
It took me a while to adapt to life in a new country.
Teachers often adapt their lessons for different ability levels.
The recipe can be adapted for a vegetarian diet.
Notice that in every case, something is being changed or adjusted. Adapt is frequently followed by to (adapt to a situation) or by for (adapt something for a purpose).
Adapt to vs Adapt For
Use adapt to when adjusting to circumstances: adapt to the climate, adapt to change. Use adapt something for when modifying it for a purpose: adapt the play for radio.
Animals must adapt to survive.
She adapted the software for visually impaired users.
Using Adopt
Adopt means to take something on as your own, or to accept or approve it formally. It does not involve changing the thing — you take it as it is. Adopt is common with ideas, methods, attitudes, policies, and, of course, with taking a child into a family.
The company adopted a new logo.
Parliament adopted the resolution unanimously.
She adopted a cheerful tone for the interview.
They decided to adopt a rescue dog.
Adopt in Formal and Legal Contexts
In official language, adopt is the standard word for formally approving something: adopt a policy, adopt a resolution, adopt a constitution, adopt new measures. It also carries its well-known meaning of legally taking a child into one’s family.
Key Differences at a Glance
- Core idea: Adapt = change something; adopt = take something on or accept it as it is.
- Object stays the same? With adapt, the object is modified; with adopt, it is taken unchanged.
- Common collocations: adapt to change; adopt a policy, a method, a child.
- Spelling: Just one letter differs — the a in adapt, the o in adopt — so proofread carefully.
Side-by-Side Examples
We adapted the strategy to fit local conditions. (we changed it)
We adopted a completely new strategy. (we took on a new one)
He adapted quickly to the new schedule.
He adopted a healthier lifestyle.
Common Mistakes
✗ We had to adopt the design to fit the smaller screen.
✓ We had to adapt the design to fit the smaller screen.
✗ The board adapted the new regulations.
✓ The board adopted the new regulations.
✗ They adapted a baby last year.
✓ They adopted a baby last year.
Memory Tip
Think of adApt with an A for Adjust — you adjust and alter something. Think of adOpt with an O for Own — you take it on as your own. One letter, two very different ideas.
Also worth exploring: Accept vs Except, Affect vs Effect, Change vs Alter. Browse all confusing word pairs →
Adapt or Adopt?
Four questions — choose the correct word for each sentence.
1. “We had to ___ the plan for the new budget.” (change it)
2. “The committee ___ the new policy.” (accepted it formally)
3. “Plants ___ to their environment.”
4. “They ___ a more flexible approach.” (took it on as their own)
Frequently Asked Questions
What is the main difference between adapt and adopt?
Adapt means to change or adjust something so it suits a new situation or purpose. Adopt means to take something on as your own or accept it formally, without changing it. With adapt, the thing is modified; with adopt, it is taken as it is.
Can adapt and adopt be used interchangeably?
No. They have different meanings even though they differ by only one letter. “Adapt a method” means change the method; “adopt a method” means start using it as it is. Choosing the wrong one changes the meaning of your sentence completely.
How do I remember which is which?
Link adApt to Adjust — both have an A, and both involve changing something. Link adOpt to Own — both have an O, and adopting means taking something on as your own. This simple trick keeps the two apart.
What are common collocations with adapt?
Common collocations: adapt to change, adapt to a new environment, adapt a novel for film, adapt a recipe, adapt quickly, adapt your behaviour, adapt to circumstances. Adapt is often followed by “to” (a situation) or “for” (a purpose).
What are common collocations with adopt?
Common collocations: adopt a policy, adopt an approach, adopt a method, adopt a child, adopt a resolution, adopt new technology, adopt an attitude, adopt a stance. Adopt is standard in formal and legal contexts for approving something.
Does adopt always mean taking in a child?
No. Adopting a child is one common meaning, but adopt also means to take on or formally accept ideas, methods, policies, attitudes, and technologies. For example, “the company adopted a new strategy” has nothing to do with children.
Can a person adapt to something?
Yes. People very often adapt to new situations — for example, “She adapted to her new job within weeks.” Here the person is adjusting their behaviour or expectations to fit the circumstances. This is one of the most common uses of adapt.
What are the noun forms of adapt and adopt?
The noun for adapt is adaptation: “a film adaptation,” “adaptation to climate change.” The noun for adopt is adoption: “the adoption of a new policy,” “child adoption.” The adjectives are adaptable and adopted.
Is adapt or adopt more common in business English?
Both appear often. Businesses adopt new technologies, policies, and strategies (take them on), and they adapt products, processes, and plans (change them) to fit markets or conditions. Knowing which idea you mean tells you which word to use.
How do adapt and adopt appear in IELTS writing?
Use adapt when writing about adjusting or changing: “Workers must adapt to automation.” Use adopt when writing about taking on something new: “Governments should adopt cleaner energy policies.” Mixing them up is a common error that can lower your accuracy score.