| fluster |
to cause to be or to become nervous, confused, or agitated. [2 definitions] |
| flute |
a high-pitched musical instrument of the woodwind family, consisting of a long slender tube of wood or metal with finger holes or keys along it, that is played by blowing into a mouthpiece at one end or across a hole near one end. [8 definitions] |
| flutter |
to move swiftly back and forth or up and down in a jerky or irregular manner; flap. [9 definitions] |
| fly1 |
to move through the air by means of wings. [12 definitions] |
| fly2 |
any of a variety of small, winged insects, esp. the common housefly. [3 definitions] |
| flycatcher |
any of various related European or American birds that feed on insects caught in the air. |
| flying |
being able to fly or seeming to fly. [6 definitions] |
| flying fish |
any of several related marine fishes with stiff, enlarged pectoral or pelvic fins that enable them to glide in the air after leaping from the water. |
| flying saucer |
any of various bright disk-shaped objects occasionally seen hovering or flying at high altitudes, often presumed to be spacecraft from another world; UFO. |
| fly off the handle |
to become suddenly enraged. |
| foal |
a young horse, mule, or related animal, esp. under one year old. [2 definitions] |
| foam |
a usu. whitish mass of small bubbles that forms on the surface of a liquid after agitation, fermentation, or the like; froth. [6 definitions] |
| foam rubber |
a firm, lightweight spongy rubber, used esp. in upholstered seats and for mattresses. |
| focus |
the point at which rays, esp. optical, come together, or from which they seem to radiate. [9 definitions] |
| fodder |
feed for farm animals, such as cut-up cornstalks mixed with hay. [3 definitions] |
| foe |
one who wishes ill on another; personal enemy. [5 definitions] |
| fog |
a thick cloudlike mass or layer made up of tiny water droplets suspended in the air near the ground. [8 definitions] |
| foggy |
full of or covered by fog. [3 definitions] |
| foghorn |
a loud, deep-sounding horn, as on a ship, used in fog or at night to give warning signals. |
| foil2 |
a very thin flexible sheet of metal such as aluminum. [7 definitions] |
| -fold |
multiplied by; times. [2 definitions] |