A septolet is a 14-word poem written in two stanzas and connected by the same idea.
I've not seen any consistency regarding number of lines (I've seen 5, 6, and 7) or where the break between stanzas should be (some recommend between lines 4 and 5 if the poem is 7 lines long).
You can read more about the septolet at The Poets Collective and Super Forty.
I hope you'll join me this week in writing a septolet. Please share a link to your poem or the poem itself in the comments.