noun🔗Share選択科目Something that is not compulsory, especially part of an academic course."The history optional in the history course is a good choice for students who don't want to take the required course. "歴史の授業の選択科目は、必修科目を取りたくない学生にとって良い選択です。educationChat with AIVocabulary GamePractice Reading
noun🔗Shareオプション、オプション変数(sometimes capitalized) In various programming languages, a kind of variable that is assigned a specific data type but may or may not hold an actual value."The program uses an optional parameter for the date of birth; it's not required for all users. "プログラムは生年月日のオプションパラメータを使用します。すべてのユーザーに必須ではありません。computingtechnologytechnicaltypelanguagewordChat with AIVocabulary GamePractice Reading
adjective🔗Share任意の, 選択のNot compulsory; left to personal choice; elective."On that beach clothing is entirely optional."そのビーチでは、衣服は完全に任意です。attitudepossibilityvalueChat with AIVocabulary GamePractice Reading
