Equal Length Words

I have an unusual hobby. I collect related words of equal length. This page lists my collection of related words that are all the same length and connected to one another in some way. This particular fascination with related words of equal length originated as a result of computer programming. While developing software, I often need to name variables, functions and other elements in a way that reflect the concepts I am working with. Occasionally, I end up choosing names for related elements that are the same length, which becomes visually striking when these names align neatly in the text editor.

Each group of words is presented in monospaced font so that the equal length of the words in each group is visually evident. Blank spaces separate the groups. The groups are sorted alphabetically according to the first word in each group. The words in each group are sorted alphabetically too.

allow
block

begin
pause
start

beverage
doughnut

black
white

bottom
middle
prefix
suffix

broadcast
syndicate

cancel
resume

client
server

correct
mistake

create
delete
remove
update

error
right
wrong

fail
okay
pass

failure
success

head
tail

index
value

inner
outer

input
radio
range
reset

look
peek

password
username

permit
forbid

pull
push

Note that some of the word groups here have been contributed by visitors to this page. Please visit the comments section to see the original contributions.

In case you are wondering why I would need words like beverage or doughnut in computer programming, I use them in my little game called Nerd Quiz to display a doughnut or beverage symbol (view source) depending on the points scored.