necessary

Everyday

1. Needed; something you must have or must do. tree →
2. «If necessary» means «if it is needed». tree →

In the lessons

In science lessons: «Water, light and air are necessary for plants to grow». In safety and rules: «A helmet is necessary when you cycle». In maths: «Show all the necessary working». Phrases: «it is necessary to», «if necessary», «necessary for».

Examples

• Food and water are necessary for life. tree →
• Is it necessary to bring a packed lunch? tree →
• Take an umbrella if necessary. tree →
• A helmet is necessary when you ride a scooter. tree →
• Only take the things that are necessary for the trip. tree →
• Light is necessary for photosynthesis. tree →
• Don't make more noise than necessary. tree →
• Nothing more is necessary, only to stir it." tree →

Note

Spelling trap: one «c», double «s» — «one collar and two sleeves». Opposite: «unnecessary». Noun: «necessity». «Necessary» is stronger than «useful»: without it, the thing cannot happen.

In Jewish tradition

In science lessons: «Water, light and air are necessary for plants to grow». In safety and rules: «A helmet is necessary when you cycle». In maths: «Show all the necessary working». Phrases: «it is necessary to», «if necessary», «necessary for».

Examples

• Attention must be called to the essential peculiarity of Hebrew doctrines, the inextricable and necessary associa- (Sefer Yetzirah, Westcott 1893) tree →
• It is necessary to avoid confusion between these letters ; different authors translate them in different manners. (Sefer Yetzirah, Westcott 1893) tree →
• "Numeral characters, were first invented because they were first necessary to mankind." (Th. (Mordell, The Origin of Letters and Numerals according to Sefer Yetzirah (1914)) tree →
• I have not gone back from the commandment of His lips; I have treasured up the words of His mouth more than my necessary food. (Writings JOB.23.12, JPS 1917) tree →

Note

Spelling trap: one «c», double «s» — «one collar and two sleeves». Opposite: «unnecessary». Noun: «necessity». «Necessary» is stronger than «useful»: without it, the thing cannot happen.