ADJ.
olympic, titanic, under
VERB + RMS
sinking, wreck
RMS + NOUN
lusitania
noun
Initialism of root mean square.
Initialism of Royal Mail Ship.
Initialism of rifle metallic silhouette.
name
Initialism of Railway Mail Service.
Initialism of Richard M. Stallman.
phrase
Initialism of ride me sideways.
The RMS Lusitania was sunk by a German U-boat in 1915.
The sinking of the RMS Lusitania caused an international outcry.
RMS Titanic sank and the wreck of RMS Olympic is under water.
i Register
In some senses, rms is marked as UK. Watch for register when choosing this word.