facepalmA gesture of bringing one or both palms to the face, with various interpretations including exasperation, chagrin, frustration, embarrassment (one's own or vicarious), etc.
facerapeA prank (varying in malice) involving unauthorized access to another person's social media account (typically Facebook) to post embarrassing or compromising content.
facereaderA device (or software) that can analyse facial expressions.
facerollTo play a game with an overpowered character or in some other way that makes it very easy to win.
facesavingThat prevents loss of face and maintains one's dignity or prestige.
facesheetA sheet of material serving as an outer face, like those surrounding the core of a sandwich panel.
FachA method of classifying singers, primarily opera singers, according to the range, weight, and color of their voices.
fachanA giant in Irish and Scottish folklore, which has one central leg, one hand protruding from its chest, and one eye.
fachidiotA (narrow) specialist expert who is ignorant outside of their specialty, or who only looks at problems through the (blinkered) lens of their own specialty.
facilitiesSynonym of facility in certain contexts.
facilityThe physical means or contrivances to make something (especially a public service) possible; the required equipment, infrastructure, location etc.
facilizationThe act of facilizing; the act of making something easy.
factetteA small snippet of true information. A minor fact.
factfemA radical feminist who uses persuasion and education in their approach.
factfileA document made up of facts on a particular topic.
factfinderIn a legal proceeding, the person or persons given the task of weighing all evidence presented and determining the facts of the case in light of that evidence; the jury, or where there is no jury, the judge.
factialityIn the philosophy of Quentin Meillassoux, the principle that things could be other than they are — we can imagine reality as being fundamentally different even if we never know such a reality — part of a critique of correlationism.
factifyTo establish truth or validity by presentation of factual evidence.
factinessThe state of being full of, or solely concerned with, facts
factionA group of people, especially within a political organization, which expresses a shared belief or opinion different from people who are not part of the group.