idioms involving “space”

Spaced-out

To be dazed, to daydream

“Yajima-san worked all night so he is a little spaced-out today.”

Note: “spacey” is also used.

Need space

To want to lessen the intensity of a romantic relationship

“She told her boyfriend she would only see him twice a week because she needed some space.”

Space cadet

A forgetful person

“Inoue-san isn’t usually such a space cadet, but she just returned from a four-day trip to New York so she is quite tired.”

Note: “space-case” is also used.

Personal space

The physical space between two people who are conversing face-to-face

“Many people are comfortable with personal space of about one meter, but it varies from culture to culture.”

Space-age

Modern

Before man walked on the moon, “space-age” meant “futuristic”. Now it just means “modern” or “current.”