Definition that contains o'clock
- bell (nautical) each of the eight half-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m.
- midnight 12 o'clock at night; the middle of the night
- mirabilis four o'clocks
- mirabilis californica California four o'clock with purple-red flowers
- california four o'clock California four o'clock with purple-red flowers
- mirabilis laevis California four o'clock with purple-red flowers
- genus mirabilis four o'clocks
- ship's bell (nautical) each of the eight half-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m.