a member of a Semitic people originally from the Arabian peninsula and surrounding territories who speaks Arabic and who inhabits much of the Middle East and northern Africa
a single undivided whole; "an idea is not a unit that can be moved from one brain to another"
an organization regarded as part of a larger social group; "the coach said the offensive unit did a good job"; "after the battle the soldier had trouble rejoining his unit"
a single undivided natural thing occurring in the composition of something else; "units of nucleic acids"
an individual or group or structure or other entity regarded as a structural or functional constituent of a whole; "the reduced the number of units and installations"; "the word is a basic linguistic unit"
a thin layer covering the surface of a liquid; "there was a thin skim of oil on the water"
used of milk and milk products from which the cream has been removed; "yogurt made with skim milk"; "she can drink skimmed milk but should avoid butter"
read superficially
remove from the surface; "skim cream from the surface of milk"
coat (a liquid) with a layer
cause to skip over a surface; "Skip a stone across the pond"