sureness

In uncountable|lang=en terms the difference between sureness and conviction

is that sureness is (uncountable) the property of being sure, deft, confident of ability while conviction is (uncountable) the state of being convinced.

As nouns the difference between sureness and conviction

is that sureness is (uncountable) the property of being sure, certainty while conviction is (countable) a firmly held belief.

As nouns the difference between pureness and sureness

is that pureness is the quality of being pure; purity while sureness is (uncountable) the property of being sure, certainty.

As nouns the difference between sureness and soreness

is that sureness is the property of being sure, certainty while soreness is the property, state, or condition of being sore; painfulness.

As nouns the difference between sureness and calm

is that sureness is (uncountable) the property of being sure, certainty while calm is (in a person) the state of being calm; peacefulness; absence of worry, anger, fear or other strong negative emotion.

As an adjective calm is

(of a person) peaceful, quiet, especially free from anger and anxiety.

As a verb calm is

to make calm.