surely
- 1Used to say that something must be true, or to ask others to agree.
Like saying "I'm sure" before someone has even answered.
Surely you remember where you put your keys.
Surely the map is wrong, because we can't be lost already.
UsageSurely asks others to agree with you. To say you are sure, use certainly.
Similarcertainly, undoubtedly
Note
- 2In a way that is certain to happen and never fails.
The small team moved steadily and surely toward its goal.
Little by little, the workers slowly but surely built the wall.
UsageOften slowly but surely.
Similarinevitably, reliably
- 3In a confident way, without doubt or shaking.
Like a cat that walks along a fence without slipping.
She walked surely across the narrow bridge.
She climbed the tall ladder quickly and surely, with no fear at all.
UsageIt usually comes after the action: moved surely.
Similarconfidently, assuredly, firmly
Oppositehesitantly, uncertainly, tentatively
Note
Practice
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Origin
From Middle English surely, made from the word sure plus -ly.
Checked 7 Nov 2026 · 2 facts
- Surely comes from Middle English surely. en.wiktionary.org
- Middle English surely was formed from sure and -ly. en.wiktionary.org