Dictionary.info
BROWSE DICTIONARY
BROWSE DICTIONARY
IELTS Words
TOEFL Words
GRE Words
SAT Words
GMAT Words
English Learning
Learning
IELTS Lessons
Exam English ✓
Graduate tests
Test English Info
Oxford Collocation Dictionary
Wordnet Online
IELTS Lessons
Google Dictionary
DEFINITIONS
SYNONYMS
Search
top definitions
Special Boat Service
noun
a unit of the Royal Marines specializing in reconnaissance and sabotage