Lo lus "thesaurus" los ntawm Greek θησαυρός, uas txhais tau tias "cov khoom muaj nqis." Hauv kev hais lus, lub chaw thesaurus yog hom tshwj xeeb ntawm phau ntawv txhais lus uas muaj cov ntaub ntawv hais txog cov kev sib raug zoo ntawm cov chav ua haujlwm lexical. Hauv cov ntaub ntawv kev tshawb xav, thesaurus yog cov kev qhia cov ntsiab lus muaj rau ib lub ncauj lus.
Nyob rau hauv qhov kev nkag siab, qhov thesaurus txhais tau qhov system ntawm kev paub tias ib qho kev kawm lossis ib pawg ntawm cov kawm muaj txog kev muaj tiag. Cov ntawv kuj tseem muaj peev xwm tau txais cov ntaub ntawv tshiab, vim qhov twg ntawm qhov qub thesaurus yuav hloov. Daim ntawv thesaurus tsis tsuas yog cov ntaub ntawv hais txog kev muaj tiag, tab sis kuj tseem muaj cov ntaub ntawv ntxiv, vim tias nws tau txais cov ntaub ntawv tshiab. Xyoo 1970, cov ntaub ntawv rov qab thesauri tau pib dav. Lawv suav nrog chav sib luag hu ua cov lus piav qhia. Nws pabcuam rau tshawb nrhiav cov ntaub ntawv hauv hom tsis siv neeg. Txhua lo lus ntawm thesaurus yog txuam nrog cov lus piav qhia qhov twg rau kev sib raug zoo lub semantic. Hauv kev hais lus, kev sib raug zoo semantic uas tau muab tso rau hauv qhov thesaurus tuaj yeem yog cov lus tsis zoo, kev ua niam ua txiv, lus sib txawv, cov ntsiab lus, thiab lwm yam. Thesauri, qhia ua hom hluav taws xob, tuaj yeem siv cov cuab yeej zoo uas koj tuaj yeem piav qhia cov ntsiab lus tshwj xeeb. ntawm ib lo lus nrog lwm cov lus thiab lawv pawg. Qhov no tso cai rau koj siv thesaurus los ua haujlwm nrog AI-powered knowledgebase populations. Qhov hauv Microsoft Word, muaj cov cuab yeej siv hu ua Thesaurus. Nrog nws cov kev pab, koj tuaj yeem saib cov lus ua ib qho lus twg, lossis tshawb rau nws cov lus txhais. Qhov no tso cai rau koj los nthuav koj cov lus ntau ntxiv, kawm cov lus ua kom paub cov lus uas twb paub dua lawm. Txhawm rau siv cov cuab yeej no, koj yuav tsum xaiv cov lus uas xav tau nyob hauv cov ntaub ntawv, tom qab ntawd nyem nws sab xis, xaiv "Lus Txhais", thiab tom qab ntawd "Thesaurus".
