legitimate for + purpose or person
Showing suitability or justification
Use for when something is acceptable for a use, goal, or group.
The grant is legitimate for educational projects.
legitimate for or legitimate in?
Legitimate for and legitimate in are both possible, but they express different meanings and are used in different contexts.
Quick answer
Legitimate for vs. legitimate in
Use legitimate for when something is acceptable or justified for a purpose or person. Use legitimate in when referring to a field, context, or activity where something is valid or accepted.
This is a legitimate form of protest.
Her concerns are legitimate in academic debate.
The expense was legitimate for business purposes.
Such methods are not legitimate in scientific research.
Her concerns are legitimate in academic debate.
The expense was legitimate for business purposes.
Such methods are not legitimate in scientific research.
Choose the pattern by meaning
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
legitimate in + field or context
Showing acceptance within an area
Use in for activities, discussions, institutions, or professional fields.
These questions are legitimate in public policy debates.
legitimate reason for + noun
Giving a valid explanation
Reason commonly takes for after legitimate.
She had a legitimate reason for leaving early.
legitimate under + rules
Referring to formal approval
Use under with laws, regulations, or systems.
The transaction was legitimate under company policy.
See the difference in context
The same subject can take different constructions because each sentence answers a different question.
Construction
Example
Meaning
legitimate for
The discount is legitimate for students only.
Suitable or valid for a group or purpose.
legitimate in
Such criticism is legitimate in journalism.
Accepted within a field or context.
legitimate reason for
He had a legitimate reason for cancelling.
A valid explanation for an action.
legitimate under
The claim is legitimate under current regulations.
Formally valid according to rules.
Common mistakes
Some combinations appear in real text but do not mean what learners often assume.
Using in for purpose
Use for when referring to intended use or beneficiaries.
✕ This funding is legitimate in research teams. ✓ This funding is legitimate for research teams.Using for with fields of activity
Use in for areas or contexts.
✕ That argument is legitimate for academic discussion. ✓ That argument is legitimate in academic discussion.Omitting a needed noun after legitimate for
For usually introduces a person, group, or purpose.
✓ The exception is legitimate for emergency cases.Quick practice
Choose the expression that matches the intended meaning.
1. These expenses are legitimate ___ business travel.
2. Such criticism is legitimate ___ political debate.
3. She had a legitimate reason ___ missing the meeting.
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Frequently asked questions
Are legitimate for and legitimate in both correct?
Yes, but they are used in different contexts and with different meanings.
Can legitimate describe laws?
Yes. You can say a law or action is legitimate under a legal system.
What is a common noun phrase with legitimate?
Legitimate reason for is a very common and natural phrase.
Related preposition guides
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