1. (noun) spike
a transient variation in voltage or current
Synonyms: capitulum, spindle, stiletto heel, spike heel, ear
2. (noun) spike
sports equipment consisting of a sharp point on the sole of a shoe worn by athletes
Synonyms: capitulum, spindle, stiletto heel, spike heel, ear
3. (noun) ear, spike, capitulum
fruiting spike of a cereal plant especially corn
Synonyms: capitulum, head, stiletto heel, pinna, ear, auricle, spindle, spike heel, spike
4. (noun) spike
(botany) an indeterminate inflorescence bearing sessile flowers on an unbranched axis
Synonyms: capitulum, spindle, stiletto heel, spike heel, ear
5. (noun) spike
a sharp rise followed by a sharp decline
Synonyms: capitulum, spindle, stiletto heel, spike heel, ear
6. (noun) spike heel, spike, stiletto heel
a very high narrow heel on women's shoes
Synonyms: capitulum, spike, spindle, stiletto heel, spike heel, ear
7. (noun) spike
each of the sharp points on the soles of athletic shoes to prevent slipping (or the shoes themselves)
Synonyms: capitulum, spindle, stiletto heel, spike heel, ear
8. (noun) spike
a sharp-pointed projection along the top of a fence or wall (or a dinosaur)
Synonyms: capitulum, spindle, stiletto heel, spike heel, ear
9. (noun) spike
a long, thin sharp-pointed implement (wood or metal)
Synonyms: capitulum, spindle, stiletto heel, spike heel, ear
10. (noun) spike, spindle
any holding device consisting of a rigid, sharp-pointed object
Synonyms: capitulum, stiletto heel, ear, mandril, arbor, spike, spindle, spike heel, mandrel
11. (verb) spike
a large stout nail
Synonyms: capitulum, spindle, stiletto heel, spike heel, ear
12. (verb) spike
stand in the way of
Synonyms: empale, lace, fortify, transfix, spike out, impale
13. (verb) transfix, impale, empale, spike
pierce with a sharp stake or point
Synonyms: fascinate, stake, empale, impale, fortify, spellbind, grip, spike out, transfix, lace, spike
14. (verb) spike
secure with spikes
Synonyms: empale, lace, fortify, transfix, spike out, impale
15. (verb) spike, spike out
bring forth a spike or spikes
Synonyms: empale, lace, spike, fortify, transfix, spike out, impale
16. (verb) spike, lace, fortify
add alcohol to (beverages)
Synonyms: interlace, fortify, entwine, fort, enlace, impale, arm, strengthen, spike, lace, transfix, build up, braid, lace up, twine, gird, spike out, beef up, plait, intertwine, empale
17. (verb) spike
manifest a sharp increase
Synonyms: empale, lace, fortify, transfix, spike out, impale
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Synonyms and Antonyms of spike 
