I love this! Another I've noticed in my own programming:

username
password

get
set
put

look
peek

hand
poke
push
pull
hold

stop
fast
pass

make
sell
take

fish
bait

string
thread
needle

I sometimes agonize to find equal-length names for related variables and slot names. English makes this harder, because opposites often have one letter difference, like start/stop, enable/disable, create/destroy.

permit
forbid

pass
fail

head
tail

index
value