making certain; discovering; determining

a statement of the similarities among two or more people, events, ideas, etc.

The act of noticing and describing events or processes in a careful, orderly way.

at first, originally, primarily, in the beginning

The frequent repetition of an act, to the extent that it becomes characteristic of the group of people performing the act.

customer

to guarantee

trustworthy

an obligation to pay or do something

to make right, correct

making an important discovery

a person with the highest power, power above everyone else's

when you think that something or someone is good or right; official permission

a person who is under medical care or treatment.

to promote goods or services

to cook uncovered in the oven with dry heat

to tell (someone) about possible danger or trouble

right away

a little bit

cautious reserve in speech; ability to make responsible decisions

plainly, in so many words; for a particular purpose

the limited nature of society's resources

an amount of space between two things or people.

correctly, in the right way

to make by hand or machine

to divide into two equal parts

to make or become smaller or less

a person who has seen someone or something and can communicate these facts

to go to or be present at

when you think that something or someone is good or right; official permission

something given for doing well

to influence

superior

the outcome of an experiment or problem

not good enough; not correct

debate

to take part in a contest

to come into sight; become visible

to become smaller or less

to look into closely; to study in great detail