diff --git a/medium/word_subsets.py b/medium/word_subsets.py
new file mode 100644
index 0000000..8331ea7
--- /dev/null
+++ b/medium/word_subsets.py
@@ -0,0 +1,17 @@
+# https://leetcode.com/problems/word-subsets
+
+from typing import Counter, Dict, List
+
+class Solution:
+    def wordSubsets(self, words1: List[str], words2: List[str]) -> List[str]:
+        result = []
+        count: Dict[str, int] = {}
+        for word2 in words2:
+            c = Counter(word2)
+            for k, v in c.items():
+                count[k] = max(count.setdefault(k, 0), v)
+        for word1 in words1:
+            c = Counter(word1)
+            if all(c.get(k, 0) >= v for k, v in count.items()):
+                result.append(word1)
+        return result