[weed] 
| 1. | a valueless plant growing wild, esp. one that grows on cultivated ground to the exclusion or injury of the desired crop. |
| 2. | any undesirable or troublesome plant, esp. one that grows profusely where it is not wanted: The vacant lot was covered with weeds. |
| 3. | Informal. a cigarette or cigar. |
| 4. | Slang. a marijuana cigarette. |
| 5. | a thin, ungainly person or animal. |
| 6. | a wretched or useless animal, esp. a horse unfit for racing or breeding purposes. |
| 7. | the weed,
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| 8. | to free from weeds or troublesome plants; root out weeds from: to weed a garden. |
| 9. | to root out or remove (a weed or weeds), as from a garden (often fol. by out): to weed out crab grass from a lawn. |
| 10. | to remove as being undesirable, inefficient, or superfluous (often fol. by out): to weed out inexperienced players. |
| 11. | to rid (something) of undesirable or superfluous elements. |
| 12. | to remove weeds or the like. |
weed out
Eliminate as inferior, unsuited, or unwanted, as in She was asked to weed out the unqualified applicants. This expression transfers removing weeds from a garden to removing unwanted elements from other enterprises. [First half of 1500s]