1.Definition: keenly excited (especially sexually) or indicating excitement
"His face all ablaze with excitement"
2.Definition: lighted up by or as by fire or flame
"Forests set ablaze (or afire) by lightning"
3.Definition: lighted with red light as if with flames
"Streets ablaze with lighted Christmas trees"
4.Definition: resembling flame in brilliance or color
"Maple trees ablaze in autumn"