What it means
し connects two or more statements that give reasons, supporting points, or related facts. It is often translated as “and” or “because,” but it usually suggests that the listed point is one reason among several, including reasons that may be left unstated. In familiar style, verbs and plain adjectives are followed directly by し, while nouns and na-adjectives use だし. In polite style, verbs use the ます form plus し, and nouns and na-adjectives use ですし. An i-adjective can use its plain form plus し or its full polite form plus ですし.
Usage note
し often implies that there are additional reasons or supporting points, so it is not always a neutral replacement for a simple “and.” For a polite i-adjective, use the complete adjective followed by ですし, not the adjective stem followed by ですし.
How to use it
田中さんは学生ですし、毎日図書館へ行きます。
Tanaka is a student, and goes to the library every day.
この部屋はきれいですし、広いです。
This room is clean, and it is spacious.
このかばんは軽いですし、丈夫です。
This bag is light, and it is durable.
この店で昼ご飯を食べますし、駅から近いです。
I eat lunch at this restaurant, and it is close to the station.
田中さんは学生だし、毎日図書館へ行く。
Tanaka is a student, and goes to the library every day.
この部屋はきれいだし、広い。
This room is clean, and it is spacious.
このかばんは軽いし、丈夫だ。
This bag is light, and it is durable.
この店で昼ご飯を食べるし、駅から近い。
I eat lunch at this restaurant, and it is close to the station.
Example sentences
この図書館は駅から近いし、夜まで開いているし、勉強しやすいです。
This library is close to the station, stays open until night, and is easy to study in.
この店は野菜が新鮮だし、店員も親切ですし、毎週買い物に来ています。
I come shopping here every week because the vegetables are fresh, the staff are kind, and there are other reasons as well.