同
JLPT 4Joyo 2

onaji, DŌ
A container upside down: 冂, one 一 and an opening 口
All containers only have one opening, and that is the same.

	興
JLPT 1Joyo 5

okosu, KYŌ, KŌ
Left and right: pressing hands , ヨ like a mortar 臼, center: same 同 [= All containers 冂 have only one 一 opening 口 and that is the same.], below: table Here: seen as two turned hands 廾 grasping upwards 屮 from below. Thus four hands are shown.
All four hands have the same interest.

	銅
JLPT 2Joyo 5

akagane, DŌ
Left: metal 金, right: same 同 [All containers 冂 have only one 一 opening 口 and that is the same.]. ("akagane" means: red metal)
(Metals differ, but no other is red.) The [red] metal that is always the same is: copper.

	筒
JLPT 2Joyo 7

tsutsu, TŌ
Top: bamboo 竹, bottom: same 同 (All containers 冂 have one 一 opening 口 and that is the same.)
Bamboo is the same as a tube.

	洞
JLPT 1Joyo 7

hora, DŌ
Left: water 氵, right: same 同.(Here: see 同 as view into a mining tunnel ロ with beams 一 supporting its walls 冂 and ceiling.)
A wet mining tunnel is a cave.

	胴
JLPT 1Joyo 7

DŌ
Left: part of body 月/肉, right: same 同 [All containers 冂 have only one 一 opening 口 and that is the same.]
This body part resembles a torso/body.