plumb
Cross references:
1. vertical
1. plumb or off plumb \'pl*m\ n [ME, fr. (assumed) OF plomb, fr. OF plon
lead, fr. L plumbum] 1: a lead weight attached to a line and used to
indicate a vertical directi on 2: a lead or other weight : out of vertical
or true - out of plumb
2. plumb av 1: straight down or up : VERTICALLY 2: DIRECTLY, EXACTLY; also
: IMMEDIATELY chiefly dial 3: COMPLETELY, ABSOLUTELY
3. plumb vb [back-formation fr. plumber] 1: to weight with lead 2a: to
measure the depth of with a plumb 2b: to examine minutely and critically
3: to adjust or test by a plumb line 4: to seal with lead 5: to supply
with or install as plumbing : to work as a plumber
4. plumb aj 1: exactly vertical or true 2: DOWNRIGHT, COMPLETE