"A husband is the spouse of a wife."

Translation: Suami adalah pasangan istri.

[Kauakolo]

is the adalah required? Could you simply say "Suami pasangan istri"?

[Kanrei]

Why is the adalah needed? (At least it marked my sentences as wrong when I didn't use adalah.)

[Cor665827]

Some weird learning sentences here in the family section

[DaveCanham]

What's the Indonesian for heterosexism?

[KyrieDomineJesus]

Do you mean heterosexuality (being attracted to the other sex) or do you mean heterosexism (unfair discrimination against people who are not same-sex-attracted)?

[Ria___]

Does "Seorang suami adalah pasangannya istri" also make sense?

[Rick392366]

Does "Seorang suami adalah pasangannya istri" also make sense?

It makes sense in the sense that it's a correct and perfect literal translation of the English sentence.
"a husband" = "seorang suami"
"the spouse of" = "pasangannya"

You can also use the classifier/counter "seorang" like this :
"Seorang suami adalah pasangan seorang istri."
"Seorang suami adalah pasangannya istri"

Both translations are correct.
However, you can omit the classifier, especially in a sentence like this where you're making a general statement.
It's much easier, much more straightforward to simply say :
"Suami adalah pasangan istri."

[anothernobody]

is adalah required?

[DennisAndreas]

I also wondered if adalah is required, and more in general: when do you use adalah?

[PedroDaSilva78]

"A husband is the spouse of wife"? Really?

[Bill678285]

Does anyone see the agenda yet???