parallel

1 parallel /ˈperəˌlɛl/ adjective
1 parallel
/ˈperəˌlɛl/
adjective
Britannica Dictionary definition of PARALLEL
1 
— used to describe lines, paths, etc., that are the same distance apart along their whole length and do not touch at any point
— compare perpendicular
2 
: very similar and often happening at the same time
3 
computers : designed for a computer system in which very small pieces of information are sent over separate wires at the same time — compare 1serial 4

— parallel

adverb
2 parallel /ˈperəˌlɛl/ noun
plural parallels
2 parallel
/ˈperəˌlɛl/
noun
plural parallels
Britannica Dictionary definition of PARALLEL
1 
a  [count] : a way in which things are similar : a shared quality or characteristic
b  [noncount] : something that is equal or similar — usually used in negative statements
2 
[count] : any one of the imaginary circles on the surface of the Earth that are parallel to the equator and that are shown as lines on maps
— compare meridian

in parallel (with)

: at the same time and in a way that is related or connected
3 parallel /ˈperəˌlɛl/ verb
parallels; paralleled; paralleling
3 parallel
/ˈperəˌlɛl/
verb
parallels; paralleled; paralleling
Britannica Dictionary definition of PARALLEL
[+ object]
1 
: to be similar or equal to (something)
2 
: to happen at the same time as (something) and in a way that is related or connected
3 
: to be parallel to (something) : to go or extend in the same direction as (something)