Certainty and Doubt - Certainty and Assurance

Here you will learn some English words related to certainty and assurance such as "check", "beyond doubt", and "assure".

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to assure [verb]

to guarantee that something specific will happen

Ex: The team 's exceptional performance in the finals assured a decisive victory .

assured [adjective]

displaying confidence in oneself and one's capabilities

Ex: The actress gave an assured performance , effortlessly conveying the emotions of her character .

to believe [verb]

to accept something to be true even without proof

Ex: I find it hard to believe that she won the lottery twice in a row .

to believe in [verb]

to firmly trust in the goodness or value of something

Ex: In challenging times , it 's important to believe in the resilience of the human spirit .

to bet [verb]

to express confidence or certainty in something happening or being the case

Ex: He 's betting that the new restaurant will become a popular spot in town .

to [bet] {one's} (life|boots|bottom dollar) [phrase]

to express strongly and confidently that something is undoubtedly true or will certainly happen

Ex: The detective was sure enough of the suspect 's guilt to bet his life on the evidence .

beyond doubt [phrase]

in a way that is absolutely certain and cannot be questioned

Ex: The mathematical proof was beyond doubt , leaving no room for skepticism among the academic community .

bound [adjective]

likely to happen or sure to experience something

Ex:

buoyancy [noun]

a feeling of hopefulness and confidence that makes one remain cheerful, especially in sad or unpleasant situations

buoyant [adjective]

cheerful and lively in spirit

Ex: Children 's buoyant energy filled the playground .

can [verb]

used to express that something is possible or may happen, exist, or be true

Ex: This disease can affect people of all ages .

cast-iron [adjective]

not subject to change or doubt

Ex: He followed a cast-iron routine every morning .

categorical [adjective]

without a doubt

Ex: The scientist 's categorical statement confirmed the theory with certainty .

cert [noun]

something that is sure to happen or succeed

certain [adjective]

feeling completely sure about something and showing that you believe it

Ex: I 'm certain we 're on the right road .

certainty [noun]

the state of being sure about something, usually when there is proof

Ex: Her certainty about the company 's financial stability allowed her to invest with confidence .

certitude [noun]

the feeling of complete certainty

Ex: His decision was made with absolute certitude , leaving no room for doubt .

to check [verb]

to discover information about something or someone by looking, asking, or investigating

Ex: I think the store closes at 8 PM , but I 'll check their website for the exact hours .

check [noun]

the act of ascertaining the validity, security, or suitability of something by inspecting it

to check on [verb]

to check the wellbeing, truth, or condition of someone or something

Ex: Can you check on the children to make sure they are sleeping soundly ?

to check over [verb]

to inspect something closely to ensure accuracy, quality, or its overall condition

Ex:

to check through [verb]

‌to carefully inspect or examine something, especially one that consists of different parts

to check up on [verb]

to examine something to confirm its quality and accuracy

Ex: The doctor checked up on the patient after the surgery .

Certainty and Doubt
Certainty and Assurance	Confidence and Surety	Certainty and Confidence	Doubt
Uncertainty	Possibility and Probability	Assessment and Estimation	Evaluation and Speculation
Assessment and Speculation