and

arson

ascending

ascent

beginnings

blue

burn

burning

burnt

bursting

chain

close

coach

communication

computer

continuity

croix

curved

danger

domino

effect

election

equipment

family

fire

flame

flammable

flow

freedom

from

glow

group

heat

hot

ideas

ignite

igniting

ignition

illuminated

into

line

lowest

matches

network

objects

people

procession

progression

queue

reaction

rise

rising

row

sequence

smoke

steps

stick

succession

transfer

wooden