1 adverb in extent, degreewe've altered the document extensivelytá an cháipéis athraithe go mór againnthe house was extensively damaged by the stormrinne an stoirm cuid mhór damáiste don teachto study a subject extensivelystaidéar cuimsitheach a dhéanamh ar ábharcomputers are used extensivelyúsáidtear ríomhairí go forleathanthe story was covered extensively by the mediabhí go leor plé ar an scéal sna meáin2 adverb in areago fairsing c m ugo leitheadach c m uturf is still cut extensively in the westbaintear móin go fada fairsing san iarthar fósshe has travelled extensivelytá an domhan siúlta aici