The most common and most likely answer to this crossword clue is the 4 letter word THEA which also is the latest solution we found used in Wall Street Journal in 2019.
Oliver Queen's sister on "Arrow" crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| THEA | 100 % | 4 | 
Words with a meaning similar to the clue: Oliver Queen's sister on "Arrow"
These words may or may not be a possible solution to this crosswords clue.- ona
 - sir
 - twist
 - cast
 - laurel
 - rose
 - stone
 - dove
 - robin
 - ebony
 - erin
 - olive
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution