tare / tear are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
tare: (noun) an adjustment made for the weight of the packaging in order to determine the net weight of the goods. (noun) any of several weedy vetches grown for forage. (noun) the weight of a motor vehicle, railroad car, or aircraft without its fuel or cargo. (noun) (chemical analysis) a counterweight used in chemical analysis; consists of an empty container that counterbalances the weight of the container holding chemicals.
tear: (noun) a drop of the clear salty saline solution secreted by the lacrimal glands. (noun) the act of tearing. (verb) separate or cause to separate abruptly. (verb) to separate or be separated by force. (verb) move quickly and violently. (verb) fill with tears or shed tears.
tare: NA
tear: t·EH·r
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)