adjective. Furnished or set with spikes, as corn; fastened with spikes; stopped with spikes.

adjective. Containing alcohol or drugs, often without the informing those who partake.

adjective. Having spikes.

adjective. Of a graph or trend that has rapidly reached a maximum.

verb. Simple past tense and past participle of spike.

adjective. having a long sharp point

"The connection between those things: Online searches for the word spiked in August as Republicans and Democrats were arguing over the federal debt ceiling and a possible government shutdown loomed."

pointed  

biked  disliked  hiked  liked  psyched  

acanthoid  acanthous  acicular  acuate  aculeate  

spike