Co
What is to work together toward the same goal
cooperate
What is having a common boundary; meeting at the ends
latitude
What is the highest point of something; in geometry, the point at which two sides intersect
vertex
What is a pile of flammable materials, usually intended for burning
pyre
What is of the same order, rank, significance, or characteristic
coordinating
What is having or related to one side (can be literal or figurative)
unilateral
What is to change into a different property or state; to adopt a new opinion, belief, or religion
convert
What is produced or created by fire or heat
pyrogenic
What is having a common boundary; meeting at the ends
coterminal
What is something offered as security for repayment of a loan
collateral
What is to draw off course; to turn aside from a set path
divert
What is a condition characterized by obsession with fire
pyromania