This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Charming; attractive: an engaging smile.

adj. That engages the attention; engrossing, interesting; enthralling.

adj. Charming; attractive, especially of a manner or behaviour.

v. Present participle of engage.

adj. Tending to draw the attention or affections; attractive.

Winning; attractive; tending to draw the attention, the interest, or the affections; pleasing: as, engaging manners or address.

adj. attracting or delighting

"It's what I call engaging in duplicitous campaigns."

attractive    engaging and disengaging machinery   

engagingness   

attractive   

engage   

aging    disengaging    enraging    gauging    paging    raging    staging    waging