1.  tare(n = noun.possession) - an adjustment made for the weight of the packaging in order to determine the net weight of the goods;
is a kind of adjustment, allowance

2.  tare(n = noun.plant) - any of several weedy vetches grown for forage;
is a kind of vetch
is a member of genus vicia, vicia
has particulars: hairy tare, hairy vetch, vicia villosa

3.  tare(n = noun.plant) bearded darnel, cheat, darnel, lolium temulentum - weedy annual grass often occurs in grainfields and other cultivated land; seeds sometimes considered poisonous;
is a kind of rye grass, ryegrass

4.  tare(n = noun.attribute) - the weight of a motor vehicle, railroad car, or aircraft without its fuel or cargo;
is a kind of weight

5.  tare(n = noun.artifact) - (chemical analysis) a counterweight used in chemical analysis; consists of an empty container that counterbalances the weight of the container holding chemicals;
is a kind of balance, counterbalance, counterpoise, counterweight, equaliser, equalizer

   Tore. [1913 Webster]

1.  A weed that grows among wheat and other grain; -- alleged by modern naturalists to be the Lolium temulentum, or darnel. [1913 Webster]
"Didst not thou sow good seed in thy field? From whence then hath it tares?" [1913 Webster]
"The “darnel” is said to be the tares of Scripture, and is the only deleterious species belonging to the whole order." [1913 Webster]

2.  A name of several climbing or diffuse leguminous herbs of the genus Vicia; especially, the Vicia sativa, sometimes grown for fodder. [1913 Webster]

   Deficientcy in the weight or quantity of goods by reason of the weight of the cask, bag, or whatever contains the commodity, and is weighed with it; hence, the allowance or abatement of a certain weight or quantity which the seller makes to the buyer on account of the weight of such cask, bag, etc. [1913 Webster]

   To ascertain or mark the tare of (goods). [1913 Webster]

tare, n.
1 vetch, esp. as corn-weed or fodder.
2 (in pl.) Bibl. an injurious corn-weed (Matt. 13:24-30).

tare, n.
1 an allowance made for the weight of the packing or wrapping around goods.
2 the weight of a motor vehicle without its fuel or load.

Idiom:
tare and tret the arithmetical rule for computing a tare.

Etymology:
ME f. F, = deficiency, tare, f. med.L tara f. Arab. tarha what is rejected f. taraha reject

hairy tare