surely

adverb

sure·​ly ˈshu̇r-lē 

ˈshər-

especially Southern ˈshȯr-

1

: in a sure manner:

a

archaic : without danger or risk of injury or loss : safely

b(1)

: with assurance : confidently

answered quickly and surely

(2)

: without doubt : certainly

They will surely be heard from in the future.

—R. J. Lifton

2

: indeed, really

—often used as an intensive

you surely don't believe that

Sure vs. Surely: Usage Guide

Sure and surely are both used as simple intensives. Sure is informal and typically used when the speaker or writer expects to be agreed with.

She sure knew how to make me laugh.

That sure was fun.

Surely can occur in formal contexts and is used whether or not agreement is expected.

Surely you jest.

It is often applied when someone is making an effort to persuade.

a book surely worth anyone's time

Synonyms of surely

• certainly
• definitely
• sure
• clearly
• probably

Examples of surely in a Sentence

She answered quickly and surely.

He will surely be missed.

This is surely the best dessert you have ever made.

Surely you must admit that it was a good decision.

Recent Examples on the Web

With the stakes being so high, the ads in this year;s Super Bowl, Winter Olympics, and NBA All-Star game will surely be interesting to watch. —Charles Taylor, Forbes.com, 24 Jan. 2026

There will surely be a lot of coattails-riding to come, as there always is when publishers try to duplicate the success of an unexpected breakout. —Literary Hub, 22 Jan. 2026

Chances are you caught a few of the contenders upon their 2025 movie theater openings, but with the onslaught of new releases in the weeks leading up to Thursday’s nominations announcement, even some voters are surely behind. —Malia Mendez, Los Angeles Times, 22 Jan. 2026

Less noticeable but still important is a large air outlet above the rear number plate that will surely extra hot air from the engine compartment. —Joel Feder, The Drive, 22 Jan. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing surely

• slowly but surely

Rhymes for surely

• demurely
• maturely
• obscurely
• securely
• insecurely
• prematurely
• purely

Kids Definition

surely

adverb

sure·​ly ˈshu̇(ə)r-lē 

1

a

: with confidence

answered quickly and surely

b

: without doubt : certainly

they will surely be heard from again

2

: beyond question : truly

I surely am tired this afternoon