Crossword clues for Sisters, say:SETUnit between the Williams sisters, sayBFFSoul sister, sayLISPHave a problem with one's sister, say?KINSisters, sayREUNESee some sorority sisters, sayAUNTMother's sister, saySIBSPair of sisters, saySISIIn Spain they say '__' (Andrews Sisters lyric)NIECESister's daughter, saySISISay ___ (1940 Andrews Sisters hit)PLEDGESister-to-be, sayNEPHEWSister's son, saySISIThey say it in Spain, in an old Andrews Sisters hitNOWPolitical grp. with a "Say It, Sister" blog