door, counter for houses, door radical (no. 63)
戸 centers on a door or gate as a physical barrier and entryway. The counter sense extends naturally from counting houses by their doors.
戸 is a pictograph of a single-leaf door or gate, with the modern form preserving the basic outline of a door frame and panel.
The shape of 戸 looks like a simple swinging door with a top hinge and a panel. Picture it as the front door of a house.
For コ, imagine a small child (子, こ) pushing open a heavy door: 子 -> コ, and the door swings open.
Kobe (city)
Edo (shogunate capital; former name of Tokyo); Yedo
door (esp. Japanese-style)
water well
strait; channel
to be bewildered; to be perplexed
family register
being at sea; losing one's bearings; confusion; wonderment
wicket gate; wooden door
number of houses; number of households
window screen; insect screen; mosquito screen; screen; screen door
detached house; stand-alone house; single-family home
brink; verge; critical moment; crucial moment
cupboard; locker; closet; wardrobe; cabinet
door
door; doorway
non-drinker; someone who cannot drink
sliding storm shutter
open air; outdoors; outside
locking up (doors and windows); fastening the doors
earthenware; porcelain; china; pottery; crockery
glass door
door-to-door visit; door-to-door canvassing (canvasing)
official copy of the family register