one-dimensional
one-fail-safe
one-for-one
one-generator
one-level
one-line
one-loop
one-machine
one-one
one-on-one
  one-out-of-four
one-out-of-ten
one-over-one
one-parameter
one-pass
one-place
one-plus-one
one-port
one-pulse
one-purpose
one-quadrant