scientific procedure. To create and perform tests to research something.

Unusual or odd; surprising because unexpected.

(Person) helping another, usually as a job. person who ranks below senior person.

To know the meaning of language, what someone says.

Teacher who teaches at a college or university.

action or process of fertilizing egg, female animal, or plant, involving fusion of male and female gametes.

Taking notice of someone or something.

in intervening period of time. Period of time while something else is happening.

think or assume that something is true or probable but lack proof.

systematic investigation into and study of materials and sources. investigate systematically.

Division of a larger part or organization.

person who tends and cultivates garden.

singling out individual member of group. individual item.

person one has affectionate bond with. People who you like and enjoy being with. add someone to list of friends or contacts on social networking website.

fixed or movable upright partition used to divide room, give shelter from draughts, heat, or light. Flat surfaces on computers or TVs showing images. conceal, protect, or shelter person or thing with screen.