A (門) 门 men2 
entrance/ door/ gate 
1. Tor, Tür 2. Klappe,Ventil 3. Art u. Weise 4. Familie 5. Sekte 6. Zählwort für Kanone etc A (門口) 门口 men2kou3
entrance/ doorway
Toreingang B (進口) 进口 jin4 kou3
import/ entrance
Import C (路口) 路口 lu4kou3
entrance to a road/ crossing/ intersection/ crossroads
Straßenkreuzung, Straßenecke D (入口) 入口 ru4kou3
entrance
Eingang, Einfahrt, in den Mund nehmen
Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.
入 入 enter, come in(to), join
口 口 mouth / open end / entrance, gate
from CC-CEDICT under a Creative Commons Attribution-Share Alike 3.0 License
B (進口) 进口 jin4 kou3 import/ entrance Import C (路口) 路口 lu4kou3
entrance to a road/ crossing/ intersection/ crossroads
Straßenkreuzung, Straßenecke D (入口) 入口 ru4kou3
entrance
Eingang, Einfahrt, in den Mund nehmen
Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.
入 入 enter, come in(to), join
口 口 mouth / open end / entrance, gate
from CC-CEDICT under a Creative Commons Attribution-Share Alike 3.0 License
D (入口) 入口 ru4kou3 entrance Eingang, Einfahrt, in den Mund nehmen Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.
入 入 enter, come in(to), join 口 口 mouth / open end / entrance, gate from CC-CEDICT under a Creative Commons Attribution-Share Alike 3.0 License