expression, godan verb (-ru)
keep a fine house; put up a front; make the front of the house nice (and be pretentious about it)
Idiomatic expression meaning to maintain an impressive outward appearance, especially of one's home, often with a nuance of pretentiousness or showing off.
彼は門戸を張って、立派な家に住んでいるが、実は借金が多いらしい。
He keeps a fine house and lives in a splendid home, but apparently he has a lot of debt.
門戸を張るよりも、中身を充実させたい。
Rather than putting up a front, I want to enrich the substance.