Meaning of CLUTTER in English
n. & v.
1. a crowded and untidy collection of things.
2 an untidy state.
--v.tr. (often foll. by up, with) crowd untidily, fill with clutter.
Etymology: partly var. of clotter coagulate, partly assoc. with CLUSTER, CLATTER
Oxford English vocab. Оксфордский английский словарь. 2012