The term 'church garment' refers to the clothing worn by members of the clergy during religious services. The three crossword solutions for this term are ALB (3 letters), COTTA (5 letters), and ABA (3 letters). An ALB is a white, ankle-length robe that is typically worn over a cassock. A COTTA is a short, white vestment with wide sleeves that is worn over an ALB. An ABA is a long, sleeveless outer garment that is usually black or purple in color.