This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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verb-intransitive. To look or stare angrily or sullenly. See Synonyms at frown.

n. An angry or sullen look or stare.

v. To look or stare with anger.

n. An angry stare or glare.

verb-intransitive. to look intently; to stare angrily or with a scowl.

To look intently or watchfully; stare angrily or threateningly; frown.

n. An angry or threatening stare.

n. In electricity, the light-giving body of a Nernst lamp. See Nernst lamp.

v. look angry or sullen, wrinkle one's forehead, as if to signal disapproval

v. look at with a fixed gaze

n. an angry stare

"The expression could best be described as a glower."

glowered    glowering    glowers   

stare   

scowl    glare    frown   

glowered    glowering   

Auer    Bower    Gower    Power    bower    cower    dauer    devour    dour    empower   

tea-drinker    pout    specialism    trouble-shooting    headshaking    side-glance    switchman    ex-employee    mutterings    storm-cloud