hexavalent/heksəʹvaylənt/ adj

• serendipity
• serene
• serf
• serge
• sergeant
• sergeant-at-arms
• sergeant major
• serial
• serialise
• serialism
• serialist
• serialize
• serial killer
• serial monogamy
• serial number
• seriate
• seriatim
• sericeous
• sericulture
• series
• serif
• serigraph
• serin
• serine
• seriocomic