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A funnel narrowing downward, restricting a list to matching items.
A funnel marks the control that narrows a list to items matching some criterion. The shape is literal: much goes in at the top and less comes out at the bottom.
Opens the controls that restrict a list or table to the entries matching a chosen criterion.
Contexts: Software
A wide horizontal opening narrowing steeply downward to a short vertical spout, forming an inverted triangle with a stem.
Both are used in software contexts.