1. spreading or reproducing something, especially plants, ideas, or information
Usage: present participle of propagate
2. growing new plants from seeds, cuttings, or other plant parts
Usage: botanical context
3. transmitting waves, signals, or energy through a medium
Usage: physics, telecommunications

Examples

• The gardener is propagating roses from cuttings.
• Social media is effective at propagating news quickly.
• The radio waves are propagating through the atmosphere.
• She’s propagating her political views through speeches.
• The virus is propagating rapidly through the population.
• Light waves are propagating through the fiber optic cable.
• The nursery specializes in propagating rare orchids.