7-Letter Words Matching A_____A

There are 71 7-letter words that match A_____A. 14 are common words, such as ADDENDA and ALFALFA. A rarer one is ATRESIA. In this set, I is the most frequent open letter (49 words). 11 words contain a doubled letter.

Full list 71

Common words

addendaalfalfaalgebraalluviaaluminaammoniaamnesiaamphoraanaemiaantennaaphasiaaphelia
addendaalfalfaalgebraalluviaaluminaammoniaamnesiaamphoraanaemiaantennaaphasiaapheliaaquariaaureolaabomasaabouliaaciculaactiniaadenomaagnosiaagraphaalamedaalforjaalgesiaamanitaamentiaampullaancillaangiomaanhingaanosmiaaphoniaaplasiaapraxiaararobaariettaarmillaarugulaaureliaabrosiaacapniaaccidiaacequiaacerolaacholiaacrasiaacromiaaecidiaaerobiaalbiziaallodiaalthaeaamboinaamboynaamreetaanalgiaanchusaanergiaangariaanopsiaaphagiaapteriaarabicaarcadiaarugolaascidiaastasiaasteriaatalayaatemoyaatresia

About this list

Words
71 (14 common words)
Common example
addenda
Rare example
atresia
Doubled letters
11
Ending in S
0
Most frequent letter
I (49)

Questions

How many 7-letter words matching a_____a are there?

71. 14 of them are common words.

What is a common example?

ADDENDA is among the common words in this set.