Transportation
- Lug (bicycle part), steel tubing and sockets of a bicycle
- Lugano Airport (IATA Airport Code)
- Lug sail is a four sided sail bent to a yard which is slung at about a third of its length from forward. It gives its name to the sailing craft lugger.
- Lugging, when an internal combustion engine is run at overly low RPMs for the load being applied to it, potentially damaging the engine in the process.
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