(spīk) noun
1. A stout piece of metal, like a large nail, but thicker in proportion.
2. A projecting, pointed piece of metal, or any similar object, as in the soles of shoes to keep the wearer from slipping.
3. A very high heel on a woman's shoe, narrow at the bottom.
4. A steel pin for plugging cannon vents.
5. A straight, unbranched antler, as of a young deer.
6. A young mackerel.
—v.t. spiked, spik·ing
1. To fasten with spikes.
2. To set or provide with spikes.
3. To block the vent of (a cannon) with a spike, rendering it useless.
4. To block; put a stop to.
5. To pierce with or impale on a spike.
6. In baseball, to injure (another player) with the spikes on one's shoes.
7. Colloq. To add spirituous liquor to. [ME <Scand. Cf. ON spikr a nail.]

(spīk) noun
1. An ear of corn, barley, wheat, or other grain.
2. Bot. A flower cluster in which there are numerous flowers arranged closely on an elongated common axis. [<L spica ear of grain]