filter up
C1 neutral inseparable intransitive
In simple words
To slowly rise up through a group or system until it reaches the people at the top.
Literal meaning: To pass upward through a filtering system.
Meanings
1 C1
idiomatic
neutral
Of information, concerns, or trends: to gradually rise from lower levels of a hierarchy to those in positions of authority.
"Staff concerns about safety eventually filtered up to the board of directors."
Grammar: inseparable
Usage notes
Less common than 'filter down'. Used in business, political, and social analysis. Describes a bottom-up spread of information, trends, or feelings. Often implies that the process is slow and may be incomplete.
Commonly used with
information concerns complaints trends feedback reports
Forms
Base
filter up
I/you/we/they
3rd person
filters up
he/she/it
Past simple
filtered up
yesterday
Past participle
filtered up
have + pp
-ing form
filtering up
continuous
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