The most common and most likely answer to this crossword clue is the 3 letter word ZSA which also is the latest solution we found used in Boston Globe in 2013.
Half sister? crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| ZSA | 100 % | 3 | 
Words with a meaning similar to the clue: Half sister?
These words may or may not be a possible solution to this crosswords clue.- stepsister
 - half aunt
 - sister
 - uterine sister
 - half sister-in-law
 - half niece
 - uterine sibling
 - full-sister
 - blood sister
 - maternal half aunt
 - full-sibling
 - half-sib
 
Crossword Answer definitions
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution