substitution
Произношение: [sʌbstɪˈtjuːʃən]
Контекст: «education»
(noun) substitution in education means using a different person or thing instead of the usual one. For example, if a teacher is absent, another teacher might come in to teach the class.
Пример
The school arranged for a substitution when the regular teacher was sick.
Пример
There can be no substitution for the regular teacher when it comes to important lessons.
Пример
Who will be the substitution for the teacher tomorrow?
Контекст: «sports»
(noun) in sports, substitution means changing one player for another during a game. It’s like when a coach takes a tired player out and puts another one in to keep the team strong.
Пример
The coach made a smart substitution that allowed the team to win the game.
Пример
The team lost because they made a bad substitution at a crucial moment.
Пример
When will the coach make the next substitution?
Контекст: «cooking»
(noun) substitution in cooking is when you replace one ingredient with another. For example, if you don’t have butter, you might use oil instead.
Пример
For this recipe, you can use applesauce as a substitution for oil.
Пример
Using salt as a substitution for sugar would not work well in this cake.
Пример
What is the best substitution for eggs if I am allergic?
Контекст: «mathematics»
(noun) in mathematics, substitution means replacing a variable with a number or another expression to solve a problem. It’s like putting in the right number to see what happens.
Пример
The student used substitution to find the value of x in the equation.
Пример
She couldn't solve the problem because she forgot the substitution step.
Пример
How does substitution help us solve this math problem?