Spike

забивка

zabivka

(volleyball)

клас

klas

(ear of grain — see also ear)

клин

klin

(very large nail)

пик

pik

(sharp peak in a graph)

шип

šip

(anything resembling such a nail in shape)

шпайкове

špajkove

(informal: running shoes with spikes in the soles)

забивам

zabivam

(volleyball)