Related Clues:
- Sound from a train
- Railroad crossing sound
- Tug's signal
- Tugboat's horn sound
- Blast, as a radio
- Line presented in unadorned sound of horn
- Engineer's signal
- Friendly greeting on the highway
- Pennywhistle sound
- Play loudly, as music
- Sound of a whistle
- Loudly project
- Brief fanfare
- Friendly honk
- Sound loudly, as a trumpet