| adulteração | adulteration |
| adultescente | adultescent |
| adultez | adulthood |
| adulticida | adulticidal |
| adultismo | adultism |
| adultizar | adultize |
| adultização | adultization |
| adulto | mature |
| adultoo | adult |
| adultos | adult |
| adultério | adultery |
| adulária | adularia |
| Adunação | Union |
| adunco | Roman |
| adutivo | adductive |
| adutor | adductor |
| adutorao | mainbons |
| aduzir | adduce |
| aduzível | adducible |
| advaita | Advaita |
| Advaita Vedânta | Advaita Vedanta |
| Advanced Audio Coding | Advanced Audio Coding |
| Advanced Interactive eXecutive | IBM AIX |
| Advanced Maryland Automatic Network Disk Archiver | Advanced Maryland Automatic Network Disk Archiver |
| Advanced Packaging Tool | Advanced Packaging Tool |
| Advanced Programmable Interrupt Controller | Advanced Programmable Interrupt Controller |
| Advanced Stream Redirector | Advanced Stream Redirector |
| advectivo | advective |
| advecção | advection |
| adventicial | adventitial |
| adventiciamente | adventitiously |
| Adventistas | Adventist |
| Advento | Advent |
| adventoo | adventons |
| Adventure Quest | AdventureQuest |
| Adventures of Sonic the Hedgehog | Adventures of Sonic the Hedgehog |
| adventícia | adventitia |
| adventício | accidental |
| adverbial | adverbial |
| adverbialidade | adverbiality |
| adverbializar | adverbialize |
| adverbialização | adverbialization |
| adverbialmente | adverbially |
| adverbio | adverb |
| Advergame | Advergaming |
| adversamente | adversely |
| adversativamente | adversatively |
| adversativo | adversative |
| adversidade | hardship |
| adverso | antipathetic |
| adversocia | averse counsel |
| adversária | competitor |
