An abbreviation of '興行収入' (box-office revenue); commonly used in film industry reports and box-office summaries.
今週の興収は先週比で20%増だった。
This week's box-office (abbrev.) increased by 20% compared to last week.
配給会社の発表によると、興収は累計で50億円を突破した。
According to the distributor's announcement, the box-office (abbrev.) has surpassed 5 billion yen in total.