What does "year-long" mean?

Alternative spelling of yearlong.

What is a synonym for "year-long"?

Common synonyms include: academic year, annual, annual course, annual patterns, extended, full-year.

adj, adv

adj, adv ·Rare ·Advanced level

Adjective

1
Alternative spelling of yearlong. alt-of, alternative, not-comparable
"Life-long marriage-contracts: how much preferable were year-long or month-long—to the nomad or ape!"

Adverb

"Their year-long stay in Germany was very fruitful."