回かい線せんかいせんCommon wordFreq.FrequencyTop 5,000Meanings1nouncircuit; lineRefers to a physical or logical telecommunication connection, such as a telephone line, internet circuit, or data link.電でん話わ回かい線せんが混こみ合あっている。The telephone lines are busy.新あたらしい光ひかり回かい線せんを契けい約やく