expressions (phrasesnoun (common) (futsuumeishi) the strait gate (in the Bible);the narrow gate

expressions (phrasesnoun (common) (futsuumeishi) high barrier (to enter a highly competitive school, company, etc.);difficult hurdle;difficulty;obstacle

'ku' adjective (archaic) archaic narrow;confined;small

'shiku' adjective (archaic) archaic only applies to せばし narrow;confined;small