1. (v. i.) To hang loose without stiffness; to bend down, as flexible bodies; to be loose, yielding, limp.

2. (v. i.) To droop; to grow spiritless; to lose vigor; to languish; as, the spirits flag; the strength flags.

3. (v. t.) To let droop; to suffer to fall, or let fall, into feebleness; as, to flag the wings.

4. (v. t.) To enervate; to exhaust the vigor or elasticity of.

5. (n.) That which flags or hangs down loosely.

6. (n.) A cloth usually bearing a device or devices and used to indicate nationality, party, etc., or to give or ask information; -- commonly attached to a staff to be waved by the wind; a standard; a banner; an ensign; the colors; as, the national flag; a military or a naval flag.

7. (n.) A group of feathers on the lower part of the legs of certain hawks, owls, etc.

8. (n.) A group of elongated wing feathers in certain hawks.

9. (n.) The bushy tail of a dog, as of a setter.

10. (v. t.) To signal to with a flag; as, to flag a train.

11. (v. t.) To convey, as a message, by means of flag signals; as, to flag an order to troops or vessels at a distance.

12. (n.) An aquatic plant, with long, ensiform leaves, belonging to either of the genera Iris and Acorus.

13. (v. t.) To furnish or deck out with flags.

14. (n.) A flat stone used for paving.

15. (n.) Any hard, evenly stratified sandstone, which splits into layers suitable for flagstones.

16. (v. t.) To lay with flags of flat stones.

Dannebrog Jolly Roger Old Glory Star-Spangled Banner Stars and Stripes Tarmac Tarvia Union Flag Union Jack abate adobe and blue ashlar asphalt banderole banner banneret bead beat beat the drum bejewel beribbon bespangle bitumen bituminous macadam black flag blacktop blade blow blue ensign bract bracteole bractlet break break down brick bricks and mortar bunting burgee burn out carpet causeway cave in cement check off clinker coachwhip cobble cobblestone collapse color colors come apart come unstuck concrete conk out cotyledon covering materials crack up crumble curb curbing curbstone dally dangle dawdle debilitate decline decrease degenerate delay desiccate deteriorate diamond die dillydally diminish dip disintegrate do in do up drag droop drop dry up dwindle ease up ebb edgestone enervate engrave ensign exchange colors exhaust fade fade away fag fag out fail faint fall off falter fatigue feather ferroconcrete festoon figure filigree firebrick fizzle out flag down flagging flagstone flash floor flooring floral leaf flounce flower foliole frazzle frond garland gasp gem gesture get tired give a signal give out give the nod give way glance glume go downhill go soft go to pieces gonfalon gonfanon goof off gravel grow weary guidon hail hail and speak half-mast halt hang down harass hit the skids hoist a banner house flag identify illuminate inform involucre involucrum jack jade jewel kerb kerbstone kick knock out knock up label lag lamina languish lath and plaster leaf leaflet leer lemma lessen let up ligule linger loiter lollygag long pennant lose strength macadam make a sign mark masonry merchant flag metal mortar motion national flag needle nod nudge oriflamme overfatigue overstrain overtire overweary paint pant pave pavement pavestone paving paving material paving stone peak pebble peg out pendant pennant pennon pennoncel petal peter out pile pine pine needle plasters play out plume poke poop poop out prestressed concrete prostrate puff puff and blow raise a cry red red ensign ribbon road metal roofage roofing royal standard run down run out sag salute sear seed leaf sepal shilly-shally shrink shrivel siding sign signal signal flag signalize sink slump sound an alarm