standard

adjective

1
commonly used or supplied
standard procedure
standard car equipment
2
regularly and widely used or sold
a standard size
a stock item
3
established or well-known or widely recognized as a model of authority or excellence
a standard reference work
the classical argument between free trade and protectionism
4
conforming to or constituting a standard of measurement or value; or of the usual or regularized or accepted kind
windows of standard width
standard sizes
5
conforming to the established language usage of educated native speakers
standard English" (American)
received standard English is sometimes called the King's English" (British)

1
any distinctive flag
2
an upright pole or beam (especially one used as a support)
distance was marked by standards every mile
lamps supported on standards provided illumination
3
the ideal in terms of which something can be judged
they live by the standards of their community
4
a basis for comparison; a reference point against which other things can be evaluated
the schools comply with federal standards
they set the measure for all subsequent work
5
the value behind the money in a monetary system
6
a board measure = 1980 board feet

Also useful for “standard”:Unscrambler— Rearrange the letters in “standard”