Big Huge Thesaurus

space-time

noun

• space-time continuum
• coordinate system
• frame of reference
• reference frame
• reference system

sounds kind of like

• sebastiana
• skipjack tuna
• soapstone
• space station
• spaghettini
• speciation
• subjection
• subjugation
• subsection
• substation
• substitution
• subsystem
• subway station
• subway system
• suffixation
• suffocation
• supposition