A spike
A homonym for spike is "spike," as it can refer to both a sharp-pointed object and a sudden increase or surge in something, like a temperature spike or a spike in interest rates.
something like a spike
Silk worms have a spike to help protect them from predators who are trying to eat them. The spike is actually harmless but the predators see it as something that could harm them.
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If you mean the name (or nickname) it isn't French. If you mean a spike (ie something pointed) we would say 'une pointe', or ' un pic'.
Most likely not. Their relationship is not a romantic one. Depending on the interpretation, Spike is something like an adopted brother or adopted son to Twilight.
When something lags very intensely for a short period of time
can anyone effect your hormones? spike your drink,or put something in your food?
it has something similar to a spike in its tail and along with its legs, it forms a tripod