玄關[genkan] entranceway
玄関先[genkansaki] entrance
玄関番[genkanban] doorkeeper
玄人[kurouto] expert (professional) in a given trade or profession
玄孫[genson] great-great-grandchild

玄麦[genbaku] unpolished wheat or barley
玄武岩[genbugan] basalt
玄米[genmai] unpolished rice
玄米茶[genmaicha] tea (with roasted rice)
玄米[kuromai] unpolished rice

空オケ[karaoke] karaoke (singing to taped accompaniment)
ベクトル空間[bekutorukuukan] vector space
茜さす空[akanesasusora] glowing sky
圧搾空気[assakukuuki] compressed air
圧縮空気[asshukukuuki] compressed air

位相空間[isoukuukan] phase space (physics)
宇宙空間[uchuukuukan] outer space
雨空[amazora] rainy sky
英国航空[eikokukoukuu] British Airways
仮想空間[kasoukuukan] virtual space (e.g. in computer graphics)

機関[karakuri] mechanism
に関して[nikanshite] related to
に関する[nikansuru] related to
シグモイド関数[shigumoidokansuu] sigmoid function
スカッシング関数[sukasshingukansuu] squashing function

ステップ関数[suteppukansuu] step function
ブーリアン関数[buuriankansuu] Boolean function
意志決定機関[ishiketteikikan] decision-making body
医療機関[iryoukikan] medical institution
因果関係[ingakankei] consequence