basic

B1 · Intermediate

adj. something that you must have or that is needed for life.

adj. relating to the most essential needs or requirements of a person or system.

日本語:基本的※

“Food, water, and shelter are basic human needs.”

“The charity works to provide basic medical supplies to regions where healthcare infrastructure has completely collapsed.”

C1 · Advanced Science Technical

adj. having a pH level higher than 7.

adj. having the properties of a base; reacting with an acid to form a salt and having a pH greater than 7.

“Soap is usually slightly basic, which helps it break down oils.”

“The researcher adjusted the solution to make it more basic, ensuring the chemical reaction occurred under optimal alkaline conditions.”

B1 · Intermediate Plural noun

n. the simplest and most important facts or things.

n. the fundamental principles or essential components of a subject or activity.

“Before you start cooking difficult meals, you need to learn the basics.”

“The workshop focuses on the basics of digital photography, such as aperture and shutter speed, to give beginners a solid foundation.”

B2 · Upper Intermediate Uncountable noun Military Informal

n. the first period of training for new soldiers.

n. the initial period of intensive physical and tactical training for new military recruits.

“He lost a lot of weight while he was away at basic.”

“After completing basic, the recruits were assigned to specialised units for further technical instruction.”