roy·al·mast also roy·al mast 
(roiəl-măst′)
(roiəl-măst′)n.
Nautical
Nautical
The small section of mast immediately above the topgallant mast on a square-rigged sailing vessel.
- incorrigibleness
- incorrigibly
- incorrupt
- incorruptibility
- incorruptible
- incorruptibly
- incorruptly
- in country
- increasable
- increase
- Increase
- increaser
- increasingly
- increate
- increately
- incredibility
- incredible
- incredibleness
- incredibly
- incredulity
- incredulous
- incredulously
- incredulousness
- increment
- incremental