テニスtenisu

1. nountennis
   １日にち中ちゅうテニスをしていたのだから。↗

   He was playing tennis all day.

• Synonym庭球ていきゅうWrittenThe older Sino-Japanese word for tennis, written in style and most often seen in school club and organization names; in everyday speech, say 「テニス」.
• SynonymローンテニスWrittenOriginally referred to tennis played on grass courts. Now rarely used; 「テニス」 is the normal word in daily conversation.

Default to 「テニス」 for tennis. 「庭球」 is the older Sino-Japanese word, still met in places like school club and association names; 「ローンテニス」 originally meant tennis on grass courts and is rarely used now. In daily speech, just say 「テニス」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 2チームがネット越ごしにボールを打ち合うちあい、得点とくてんを競きそう球技きゅうぎの一ひとつ。硬式こうしき・軟式なんしきの2種しゅがある。