How to spell VACINIST correctly?

If you meant "vaccine", you may have misspelled it as "vacinist". A possible suggestion for the accurate term could be "vaccinist", which refers to an advocate or supporter of vaccines. However, the correct spelling is "vaccinologist", which describes an expert in the field of vaccines and their development.

• Machinist My neighbor is a skilled machinist who can fix or create anything I need.
• Pacifist My friend is a firm pacifist and strongly believes in resolving conflicts peacefully.
• Vainest He was the vainest man I had ever met, constantly checking his reflection in every mirror he passed.

Attenttion

• attention
• attentions
• attenuation
• inattention