Certainty and Doubt

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

Her certainty in her ability to complete the marathon came from months of dedicated training.

a feeling of disbelief or uncertainty about something

Doubt crept into her mind as she pondered the possibility of failure.

a state of being confused and not having a clear understanding of an action, behavior, etc.

The student's confusion was evident when he couldn't solve the math problem.

the belief in one's own ability to achieve goals and get the desired results

She spoke with confidence during the presentation, impressing the audience.

(mathematics) a number representing the chances of something specific happening

The probability of rolling a six on a fair die is one-sixth.

having a high possibility of happening or being true based on available evidence or circumstances

With clear skies and no signs of storm, it seems probable that the outdoor event will proceed as planned.

to think that something is probably true, especially something bad, without having proof

I suspect he's been lying about where he was last night.

to guarantee that something specific will happen

Success was now assured with the implementation of the new strategy.

to pause before saying or doing something because of uncertainty or nervousness

When asked about the promotion, Sarah hesitated before responding.

a feeling of doubt, uncertainty, or reluctance before acting

She showed hesitation before agreeing to the risky plan.

a formal declaration by which someone is found guilty of a crime in a court of law

The defendant's conviction was based on solid evidence presented during the trial.

to formally promise that specific conditions related to a product, service, etc. will be fulfilled

The company guarantees that the electronic devices are free from defects for one year after purchase.

to make sure that something will happen

She ensures the quality of the products before they are shipped.

to think or believe that it is possible for something to happen or for someone to do something

The weather forecast led us to expect rain this weekend.

according to opinions or guesses instead of facts or evidence

The article contained speculative theories about the origins of the universe.

real and tangible, existing in physical form that can be sensed or experienced

The detective searched for concrete clues at the crime scene to solve the mystery.

clearly true and therefore impossible to deny or question

The impact of climate change on the environment is undeniable, as evidenced by rising temperatures and melting ice caps.

(of a subject of discussion) unclear or uncertain, therefore can be further discussed or disagreed with

The impact of the new policy is debatable among experts.

unable to be prevented

As technology advances, it becomes increasingly inevitable that automation will replace certain jobs.

to secure or tie together using ropes or other materials

The sailor will bind the cargo securely to the ship's deck with sturdy ropes.

not firmly established or decided, with the possibility of changes in the future

They reached a tentative agreement on the terms of the contract, pending further negotiation.

to make someone do something using reasoning, arguments, etc.

I tried to convince my friend to join the hiking trip by highlighting the beautiful scenery and adventure it would offer.

to put something or someone somewhere or in a certain position

She set the book on the table.

not producing a clear result or decision

The medical tests were inconclusive, so further examination is needed to determine the cause of the symptoms.

used to say that the something is believed to be true based on available information or evidence

She left the office early, presumably to attend a family event.

to think that something is true without having proof or evidence

She often assumes that everyone agrees with her perspective.

an idea or belief that one thinks is true without having a proof

His assumption about the meeting time was incorrect.

in a way that is certain and beyond any doubt

The weather was decidedly colder than the forecast suggested.

used to suggest that something is assumed to be true, often with a hint of doubt

She was supposedly the last person to leave the building, according to eyewitnesses.

(of a person) uncertain or hesitant about something

He appeared doubtful about the reliability of the information he received.

causing doubt or suspicion

His dubious explanation for being late didn’t seem believable.