1. Said of a planet in conjunction with the sun, or so near as to be extinguished by it.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• combuston,
• combast,
• bombuss,
• jombus,
• xombust,
• vombust,
• fombust,
• dombust,
• cimbust,
• ckmbust,
• clmbust,
• cpmbust,
• c0mbust,
• c9mbust,
• conbust,
• cokbust,
• cojbust,
• comvust,
• comnust,
• comhust

• Composto,
• compost-amended,
• coombsite,
• campsite,
• composed,
• combest,
• combiest,
• composite,
• confuse,
• COMPSUD,
• kempiest,
• Compositte,
• campuswide,
• campused,
• confused,
• de-composed,
• confusing,
• combustion,
• campest,
• gumpest,
• combes,
• well-composed,
• Compositae,
• Cambist,
• confusion,
• compost-heap,
• compest,
• compost,
• combs,
• Gambist,
• self-composed,
• coombes,
• composita,
• Compassed,
• dis-composed,
• combustive,
• carbon-composite,
• composed.y,
• compesced,
• through-composed,
• compast,
• coombs,
• COMPACITY,
• campiest,
• Combustio.

The adverb form of "combust" is "combustibly".

The adjective form of the word "combust" is "combustible".