security blanket

1. 1.

   anything that an adult person uses to reduce anxiety

   Broaderthing

   colloquialism

2. 2.

   a blanket (or toy) that a child carries around in order to reduce anxiety

   Broaderblanket

Questions about security blanket

What does security blanket mean?

security blanket means "anything that an adult person uses to reduce anxiety". That is the primary sense; the word has 2 in total, listed in full on this page.

Is security blanket a common word?

security blanket is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.