Third-person singular simple present indicative form of jam.(verb)
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Use "jams" in a sentence
"Turns out that one of the major causes of stress during traffic jams is the associated noise."
"One way to lessen these shockwave traffic jams is to use your brakes as little as possible (albeit it safely)."
"At recent live shows, Wilco has played two new songs: "One Wing" recalls the melancholy, slowly building "Sky Blue Sky" closer "On and On and On," while "Sunny Feeling" has a sly main riff in keeping with loose jams from the last album."