grimace /grimˈəs or gri-māsˈ/

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

To make grimaces

grimˈacer noun

• semimanufacture
• semimenstrual
• semi-metal
• semi-metals
• semi-monthlies
• semi-monthly
• semi-mute
• semi-mutes
• seminal
• seminal fluid
• seminal fluids
• seminalities
• seminality
• seminally
• seminar
• seminarial
• seminarian
• seminarians
• seminaries
• seminarist
• seminarists
• seminars
• seminary
• seminate
• seminated