ので

ので is used to state a reason or cause for something. It is more formal and softer than から and often sounds more objective or explanatory. It connects a situation or condition to a result or decision. It can refer to information that the speaker knows or has observed. Commonly used in conversations, emails, or polite explanations. Examples: 日本語を勉強するので、毎日練習します。今日は雨が降るので、傘を持って行きます。今日は天気がいいので、ピクニックに行きます。友達が来たので、パーティーは延期になりました。 (Note: In casual speech, ので is sometimes replaced with から or て-form + しまう/しまう and similar constructions.)