in principle — generalising / hedging (in theory, but not always in practice)
expressionC1IELTS 7+formaloccasional
Used to say that something is true or possible according to the basic idea or theory, but it may not always happen or work like that in real life.
Say it like a native
Textbook Theoretically speaking, the proposal is acceptable to us.
Native In principle, we're fine with it — the details are another matter.
'In principle' neatly flags 'agreed in theory, not yet in practice'. 'Theoretically speaking' is vaguer.
Pattern: in principle, [clause] / [clause], in principle
In use
- In principle, anyone can apply for the scholarship, but in reality, very few people meet all the requirements.daily life
- In principle, technology should make our lives easier, but in practice, it sometimes creates new problems, like information overload or privacy concerns.IELTS speaking
Common mistake
✗ In principal, I agree.
✓ In principle, I agree.
It's 'in principle' (the idea), not 'principal' (main / a head teacher).
Common collocations
in principle— agree in principle, in principle, yes, approved in principle, in practice
Don't confuse it
'In principle' focuses on what should be possible according to theory or rules, while 'in practice' refers to what actually happens in real situations.