certainty

As an adverb probably

is in all likelihood.

As a noun certainty is

the state of being certain.

As nouns the difference between tenacity and certainty

is that tenacity is the quality or state of being tenacious; as, tenacity, or retentiveness, of memory; tenacity, or persistency, of purpose while certainty is the state of being certain.

As a proper noun chance

is , an american pet form of chauncey, in modern usage also associated with the word chance.

As a noun certainty is

the state of being certain.

Solidness is a related term of certainty.

As nouns the difference between solidness and certainty

is that solidness is the state or quality of being solid while certainty is the state of being certain.

Certainty is a synonym of positiveness.

As nouns the difference between certainty and positiveness

is that certainty is the state of being certain while positiveness is (uncountable) the quality of being positive; positivity.

Shelter is a related term of certainty.

As nouns the difference between shelter and certainty

is that shelter is a refuge, haven or other cover or protection from something while certainty is the state of being certain.

As a verb shelter

is to provide cover from damage or harassment; to shield; to protect.

Guard is a related term of certainty.

As nouns the difference between guard and certainty

is that guard is a person who, or thing that, protects or watches over something while certainty is the state of being certain.

As a verb guard

is to protect from danger; to secure against surprise, attack, or injury; to keep in safety; to defend.

Protection is a related term of certainty.

As nouns the difference between protection and certainty

is that protection is the process of keeping (something or someone) safe while certainty is the state of being certain.

As nouns the difference between risk and certainty

is that risk is a possible, usually negative, outcome, eg, a danger while certainty is the state of being certain.

As a verb risk

is to incur risk (to something).

Certainty is a related term of pledge.

As nouns the difference between certainty and pledge

is that certainty is the state of being certain while pledge is a solemn promise to do something.

As a verb pledge is

to make a solemn promise (to do something).