101 adjective Quick reference
New Oxford American Dictionary (3 ed.)
▶
adjective
[
postpositive
]
.
■
informal
:
stuff that you should learn in hacking 101
.
2.0 adjective Quick reference
New Oxford American Dictionary (3 ed.)
▶
adjective
[
postpositive
]
:
welcome to Big Government 2.0
.
used to denote superior or more advanced version of original concept, product, service, etc.
2.0
– origin
early 21st cent.
: from
.
20/20 adjective Quick reference
New Oxford American Dictionary (3 ed.)
▶
adjective
.
denoting vision of normal sharpness