Ignite

v.energetic, hopefulprofessional

Meaning 1

To begin burning or cause something to catch fire.

Reach for it when describing the controlled start of a flame or combustion process

A shielded spark will ignite the fuel only after the chamber is sealed.

everyday
light
plain speech should name starting a lamp, fire, or burner
not when Light is less technical and does not suit spontaneous combustion.
literary
kindle
a flame or feeling grows gently from a small beginning
not when Kindle is softer and slower than the sudden force suggested by ignite.

To awaken strong interest, energy, or action.

Reach for it when describing the moment an idea or example starts wider enthusiasm

The first repaired instrument helped ignite interest in restoring the whole collection.

everyday
spark
one small trigger begins a larger response
not when Spark stresses the trigger and may not produce sustained energy.
warm
inspire
the new feeling should guide meaningful action
not when Inspire adds admiration or purpose that simple excitement may lack.
professional
activate
a mechanism or process is switched into operation
not when Activate sounds mechanical when the subject is human enthusiasm.
professional
galvanize
a group is jolted into collective action
not when Galvanize is too forceful when curiosity develops quietly.
literary
awaken
a dormant interest or capacity gradually becomes conscious
not when Awaken lacks the heat and urgency carried by ignite.

ignite a flame
The pilot light will ignite a flame beneath the sealed vessel.
ignite interest
A hands-on map can ignite interest in the neighborhood's hidden waterways.
ignite change
One transparent result may ignite change across the larger system.
ignite debate
The newly released correspondence may ignite debate about the earlier decision.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.