Definitions

1. verb

to close slightly or partially

“The concert hall semiclosed its doors to let in some fresh air.”

2. verb (music)

to close a musical phrase or section by reiterating a part or a theme, but not completing it

“The orchestra semiclosed the symphony with a haunting reprise.”

3. noun

a musical phrase or section that semicloses

“The semiclose at the end of the movement was particularly effective.”