جِدّ: ضِدّ هَزْل earnestness, seriousness

جِدّ: اِجْتِهَاد diligence, assiduity, sedulity, hard work, painstaking, industry; persistence, perseverance

اُنْظُرْ: جِدّاً

جِدّ عَظِيمٍ very great

بِجِدّ، مِنْ جِدّ seriously, earnestly, in earnest