GRE TOEFL IELTS slumber Definition A state of sleep, especially deep sleep. Example "The baby lay in peaceful slumber, unaware of the noise outside." Sign in to save GRE Quiz → TOEFL Quiz → IELTS Quiz → ← slum slump → Study tips featuring "slumber" Map Each Word Into a Connected Network Audit Your Own Writing for Lexical Resource Force Contrast Between Two Similar Words Related words GRE awe GRE smithereens GRE abacus SAT abase GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate SAT abdomen GRE abduct GRE aberrant