1. An X-shaped frame or stand used to hold wood or logs for sawing.
Usage: Also called a sawhorse in some contexts.
2. A railroad crossing sign or barrier shaped like an X.
Usage: Common in North America; marks grade crossings.

Examples

• He placed the log on the crossbuck before cutting it with the handsaw.
• The carpenter set up two crossbucks to support the long board.
• Drivers must stop at the crossbuck and look both ways before crossing the tracks.
• The old wooden crossbuck at the rural crossing had faded from years of weather.
• She built a simple crossbuck from scrap wood to use in her workshop.