schäumen (ww):
schuimen(de) —.
(en) form or emit foam.
(en) To bubble.
(en) of a liquid, vapour, etc., or a container holding it: to foam or froth in an agitated manner, as if boiling., beven(en) to be in a state of elevated anxiety., borrelen(en) To bubble., bubbelen(en) To bubble., sidderen(en) to be in a state of elevated anxiety.
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