noun
young couple
Refers to a married couple who are young in age, or sometimes to a newlywed couple.
隣に越してきた若夫婦はとても感じがいい。
The young couple who moved in next door are very pleasant.
あの若夫婦は毎朝一緒にジョギングをしている。
That young couple goes jogging together every morning.
夫婦 is the general term for 'married couple', without the age nuance.
Compound of 若 (waka, 'young') and 夫婦 (fūfu, 'married couple').