A Limited Word™ is:
A word that its letters add up to 63.
For example:
climate = 3 + 12 + 9 + 13 + 1 + 20 + 5 = 63.
In detail:
traffic = 20 + 18 + 1 + 6 + 6 + 9 + 3 = 63.
mailman = 13 + 1 + 9 + 12 + 13 + 1 + 14 = 63.
buffalo = 2 + 21 + 6 + 6 + 1 + 12 + 15 = 63.
command = 3 + 15 + 13 + 13 + 1 + 14 + 4 = 63.
try = 20 + 18 + 25 = 63.
handles = 8 + 1 + 14 + 4 + 12 + 5 + 19 = 63.
durable = 4 + 21 + 18 + 1 + 2 + 12 + 5 = 63.
climate = 3 + 12 + 9 + 13 + 1 + 20 + 5 = 63.
camping = 3 + 1 + 13 + 16 + 9 + 14 + 7 = 63.
Chinese = 3 + 8 + 9 + 14 + 5 + 19 + 5 = 63.