The term 'just swell' is an expression of approval or satisfaction. It can be used to describe something that is very good or excellent. The crossword solutions for this term are DANDY (5 letters), ACES (4 letters), AOK (3 letters), and HUNKYDORY (9 letters). DANDY is an adjective meaning very good or excellent, while ACES is another way of saying perfect or excellent. AOK is an acronym for 'all okay', which is another way of expressing approval or satisfaction. Finally, hunkydory is an informal expression meaning very satisfactory or pleasing. All of these words express the same sentiment as the phrase 'just swell'.