When it comes to finding synonyms for the word "ack air", several alternatives come to mind. One possible substitute could be "lament breeze", capturing the essence of a gentle, sorrowful airstream. Another option is "sigh wind", expressing a soft gust with a hint of melancholy. Additionally, "grieve gust" could be used to convey a mournful and powerful burst of wind. For a more poetic synonym, "murmur zephyr" could be applied, evoking a murmuring and delicate breeze. Lastly, "weeping draft" might be employed to depict a weepy and melancholic current of air. Each of these alternatives provides a unique way of expressing the idea of "ack air" in various contexts.