grimace /grimˈəs or gri-māsˈ/

1. A distortion of the face, in fun, disgust, etc
2. A smirk

To make grimaces

grimˈacer noun

• melanoma
• melanomas
• melanomata
• melanophore
• melanophores
• melanos
• melanoses
• melanosis
• melanotic
• melanotropin
• heir-portioner
• heir-portioners
• heir presumptive
• heirs
• heirs apparent
• heirs-at-law
• heirship
• heirships
• heirs presumptive
• Heisenberg's principle
• Heisenberg's uncertainty principle
• Heisenberg uncertainty principle
• heist
• heisted
• heister