seal·ing wax 
(sēlĭng)
(sēlĭng)n.
A resinous preparation of shellac and turpentine that is soft and fluid when heated but solidifies upon cooling, used to seal letters, batteries, or jars.
- rubrication
- rubricator
- rubrician
- rub shoulders
- rub (someone's) nose in
- rub someone's nose in
- rub (someone) the wrong way
- rub someone the wrong way
- rub the wrong way
- rub up on
- ruby
- ruby laser
- ruby-throated hummingbird
- ruche
- ruched
- ruching
- ruck
- ruck
- rucksack
- ruckus
- ruction
- rudd
- rudder
- rudderless
- rudderpost