with obj.
1
- measure (the depth of a body of water)测量（水深）
1.1
- no obj., with adverbial(of water) be of a specified depth（水）有…深：
at its deepest the lake scarcely plumbed seven feet.
这个湖最深的地方不过七英尺。
1.2
- explore or experience fully or to extremes（充分或极度地）探索, 经历：
she had plumbed the depths of depravity.
她曾经经历过极度堕落。
2
- test (an upright surface) to determine the vertical测定垂直度。
- a ball of lead or other heavy object attached to the end of a line for finding the depth of water or determining the vertical on an upright surface测深锤; 铅锤, 垂球。
1
- informal exactly〈非正式〉正好地, 准确地：
trading opportunities plumb in the centre of central Europe.
中欧正中心的贸易机会。
1.1
- as submodifier N. Amer. to a very high degree; extremely〈北美〉高度地, 极度地：
they must both be plumb crazy.
他们俩一定都真是疯了。
1.2
- as submodifier N. Amer. completely〈北美〉完全地, 不折不扣地：
the transmission was plumb worn out.
变速器完全坏了。
2
- archaic vertically〈古〉垂直地：
drapery fell from their human forms plumb down.
打褶的衣服从他们的人物模型上垂直掉了下来。
1
- vertical垂直的：
ensure that the skirting is straight and plumb.
确保踢脚线呈直线垂直状态。
1.1
- Cricket (of the wicket) level; true【板球】（三柱门）平直的; 正的。
短语
out of plumb
- not exactly vertical不完全垂直的：
the towers are inclined, from four to ten feet out of plumb.
那些塔是歪的, 偏离垂直线4到10英尺。
词源
Middle English （originally in the sense 'sounding lead'）： via Old French from Latin plumbum 'lead'.
with obj.(plumb something in)
1- install an appliance such as a bath, toilet, or washing machine and connect to water and drainage pipes安装（浴缸, 马桶, 洗衣机等）（使之与给水和排水管道接通）。
1.1
- install and connect water and drainage pipes in (a building or room)给（建筑, 房间）安装给水和排水管道：
the kitchen is plumbed for a washing machine.
厨房里装了洗衣机用的上、下水管。
词源
late 19th cent. （in the sense 'work as a plumber'）： back-formation from PLUMBER.