養い|やしないyashinai[0]heiban (flat)

1. nounnutrition; nourishment
2. nounbringing up; nurture; rearing

• Synonym滋養じようWrittenNourishment taken to build the body up, often seen in 「滋養強壮」; carries a health-tonic flavor and belongs to written or formal prose.
• Synonym栄養えいようNeutralThe everyday word for nutrition, covering both the taking in of nourishment and the nutrients themselves; 「養い」 sounds old-fashioned beside it.
• Related栄養分えいようぶんNeutralThe nutrients the body needs, with the focus on the components themselves; unlike 「養い」, it never covers rearing or bringing someone up.
• Related養分ようぶんNeutralNutrients absorbed from outside, used mostly for plants and soil, as in 「土の養分」.
• Related栄養素えいようそWrittenA nutrition-science term for specific nutrients such as protein and vitamins; belongs to written or formal prose.
• Related栄養物えいようぶつWrittenNourishing food, or the nutritious substances it contains — concrete things rather than the act of nourishing; little used in modern Japanese.

Say 「栄養」 for nutrition in everyday use; 「養分」 for what plants or soil take in, 「滋養」 for nourishment that builds the body up, and 「栄養素」 for specific nutrients like vitamins. 「養い」 is old-fashioned and can also mean rearing.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 養やしなうこと。養育よういく。
2. 栄養分えいようぶん。
3. 「やしなう」の連用形れんようけい。