Common words:
* beam (a ray of light)
* cream (a dairy product)
* dream (a series of thoughts, images, and sensations occurring in sleep)
* seam (a line where two pieces of fabric are sewn together)
* team (a group of people working together)
Less common words:
* gleam (a flash of light)
* ream (a quantity of paper, typically 500 sheets)
* stream (a flow of water)
* teem (to be full of something)
* deem (to consider or judge)
Words from other languages:
* élan (French for "style," "spirit," or "enthusiasm")
* schlemiel (Yiddish for "clumsy person")
Note: The "-eam" ending is not very common in English. Many words that look like they might end in "-eam" actually end in "-em," like "blemish" or "system."