What's missing from the theme entries - Answers with 4 Letters

Question:

What's missing from the theme entries

Answer:

SSSS

Length:

Similar Crossword Questions:

This puzzle's theme entries, e.g.
What this puzzle's theme entries take, vowel-wise
Word that can precede the start of the theme entries
Letters within the theme entries that are, literally, next to nothing
Challenged, or what the theme entries in this puzzle should be
They're hidden in this puzzle's theme entries
Topic related to all four theme entries
Word appearing before or after each word in the long theme entries
Today's honoree and word found in the four theme entries
Metaphorical talk show area of which each of the theme entries steers clear
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What are featured in the theme entries of this puzzle
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They've cleaned up the four theme entries above
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