Synonyms for spike Updated: 23-10-2024 by Wikilanguages.net share facebook share twitter Some common synonyms of spike are: spike [n.] 1. Ear (of grain), head. 2. Large nail or pin. All 🔎︎ Synonyms of spikespike [n.] 1. Ear (of grain), head. 2. Large nail or pin. Read More about: spike