This is the 1480th most frequent Japanese word.
酢
Vinegar.
In this sentence, "酢" refers to vinegar as an ingredient used in the dressing.
このドレッシングには酢が使われています。
This dressing contains vinegar.
Here, "酢" is discussed in a general sense as a substance known for its health benefits.
酢は健康に良いと言われています。
Vinegar is said to be good for health.
In this context, "酢" focuses on the accurate measurement of vinegar as an element in cooking.