clog

verb

clogged; clogging; clogs

transitive verb

1

a

: to impede with a clog : hinder

b

: to halt or slow the progress, operation, or growth of : encumber

… restraints that have been clogging the market …

—T. W. Arnold

2

a

: to fill beyond capacity : overload

cars clogged the main street

—often used with up

petty cases clogging up the courts

b

: to cause blockage in

—often used with up

arteries clogged up by cholesterol

intransitive verb

1

: to become filled with extraneous matter

—often used with up

2

: to unite in a mass : clot

3

: to dance a clog dance

clogger

ˈklä-gər 

ˈklȯ-

noun

Synonyms of clog

• block
• obstruct
• fill
• congest
• jam

Choose the Right Synonym for clog

hamper, trammel, clog, fetter, shackle, manacle mean to hinder or impede in moving, progressing, or acting.

hamper may imply the effect of any impeding or restraining influence.

hampered the investigation by refusing to cooperate

trammel suggests entangling by or confining within a net.

rules that trammel the artist's creativity

clog usually implies a slowing by something extraneous or encumbering.

a court system clogged by frivolous suits

fetter suggests a restraining so severe that freedom to move or progress is almost lost.

a nation fettered by an antiquated class system

shackle and manacle are stronger than fetter and suggest total loss of freedom.

a mind shackled by stubborn prejudice

a people manacled by tyranny

Examples of clog in a Sentence

The sink was clogged by dirt and grease.

The drain clogs easily because the opening is so small.

Recent Examples on the Web

This means it was formulated to minimize the risk of clogging pores. —Julia Landwehr, Health, 5 June 2026

The project’s first I-285 closure took place in the same area three weeks ago, sending traffic to the Downtown Connector and clogging some neighborhood streets in the West End and Cascade Heights. —Vanessa McCray, AJC.com, 4 June 2026

The central spaces in which Palmer likes to operate have also felt clogged at times, particularly when Marc Cucurella inverts from left-back. —Liam Twomey, New York Times, 3 June 2026

Campaign ads will clog the airwaves. —Elaine Godfrey, The Atlantic, 3 June 2026

Word History

First Known Use

14th century, in the meaning defined at transitive sense 1a

Phrases Containing clog

• clog dance

Rhymes for clog

• blog
• bog
• cog
• dog
• flog
• fog
• frog
• grog
• hog
• jog
• log
• og

Kids Definition

clog

1 of 2 noun

ˈkläg 

ˈklȯg

1

: something that hinders or holds back

a clog in the drain

2

: a shoe or sandal having a thick usually wooden sole

clog

2 of 2 verb

clogged; clogging

1

: to get in the way of

2

: to block passage through

3

: to fill or become filled beyond capacity

heavy traffic clogged the roads