4 letters:
anna, cana, hana, jana, kana, lana, nana, rana, sani, vana

5 letters:
-iana, abana, adana, alana, amana, anana, apana, arana, avana, azana, banna, brana, canna, can a, chana, cyana, danna, deana, diana, duana, dyana, eanna, edana, elana, fiana, frana, ganna, ghana, grana, hanah, hanna, hpana, ioana, ipana, janna, kanah, kaneh, kanna, kiana, lanna, llana, luana, manna, man a, meana, nanna, ocana, opana, orana, oxana, panah, panna, piana, piano, plana, prana, ran a, ruana, sanna, santa, scana, shana, slana, snana, spana, tanna, thana, tiana, trana, tyana, udana, ulana, vanna, viana, vrana, zanna

6 letters:
aduana, agrana, aldana, allana, amanah, arcana, ariana, arlana, asiana, banana, branna, briana, cabana, canana, channa, chiana, cumana, dannah, deanna, delana, devana, dianna, dogana, eliana, fianna, flanna, fraena, gitana, habana, hannah, havana, humana, hyaena, ileana, iliana, insana, iriana, jannah, joanna, khanna, kianna, kibana, labana, lacana, lagana, levana, lohana, luwana, macana, magana, melana, nolana, o'cana, oceana, oksana, organa, oriana, ozaena, pirana, pizana, plan a, quiana, ravana, reanna, rebana, retana, rexana, rohana, roxana, savana, semana, shanna, solana, span a, strana, than a, tianna, tigana, torana, triana, urbana, vidana, zanana, zenana, zorana

7 letters:
adriana, afghana, alcanna, angsana, apadana, arianna, asthana, atlanta, ayapana, bananna, bandana, began a, bhavana, brianna, campana, caruana, collana, cusiana, dicrana, fergana, fontana, gharana, gordana, grafana, haldana, hariana, havanna, hermana, heryana, hosanna, indiana, japan a, johanna, jordana, juliana, kalhana, kalpana, khorana, kiwiana, lantana, lapiana, larkana, leliana, liliana, louanna, luciana, mariana, marlana, maulana, mawlana, mccanna, mckanna, mediana, messana, miliana, montana, morgana, nabanna, nelvana, nervana, omniana, orianna, peruana, pestana, philana, prerana, pro-ana, rhianna, rosanna, roxanna, ruslana, saldana, santa's, santana, saranna, sardana, savanna, soriana, sravana, stevana, sullana, susanna, susiana, suzanna, sylvana, syriana, tatiana, teavana, terrana, tipuana, toskana, turkana, tympana, veerana, ventana, verdana, viddana, viviana

8 letters:
acadiana, adrianna, anabaena, anardana, andriana, aspadana, avellana, balasana, bandanna, bechuana, bepannah, bhirrana, botsuana, brahmana, buncrana, caragana, caravana, caribana, chandana, dulciana, ferghana, firmiana, floriana, forteana, gentiana, gloriana, guadiana, gymkhana, havannah, hiragana, hosannah, italiana, jetavana, kamidana, kanchana, lilliana, lousiana, ludhiana, mahannah, maiorana, margiana, maryanna, membrana, mexicana, michiana, neemrana, nelliana, orellana, palitana, pastrana, phalaena, prasanna, quintana, ra'anana, roseanna, roxelana, savannah, sechuana, shamiana, shibanna, shoshana, shravana, sogdiana, susannah, taravana, thotiana, zambrana

9 letters:
americana, canadiana, cataplana, corsicana, durindana, europiana, filigrana, freudiana, georgiana, guanabana, higanbana, jambolana, lakshmana, lorenzana, louisiana, madmannah, martorana, nicotiana, okurigana, padmasana, parenzana, poinciana, pollyanna, porcelana, pozzolana, puzzolana, ratmalana, rodobrana, rusticana, shraavana, siciliana, sphyraena, taprobana, texarkana, tropicana, valeriana, villafana, villasana, viridiana, yotsugana

10 letters:
americanah, caproniana, castellana, christiana, copacabana, dominicana, edwardiana, enheduanna, frigiliana, genus rana, hashbadana, hentaigana, karshapana, louisianna, parmigiana, phagedaena, porcellana, pozzuolana, rich piana, shoshannah, top banana, tramontana, vaisravana, victoriana, villagrana, vox humana

11 letters:
abhinandana, absinthiana, amatriciana, amphisbaena, antseranana, antsiranana, australiana, christianna, dekemvriana, kang han-na, kazakhstana, lincolniana, melt-banana, openindiana, susquehanna, zoe saldana

12 letters:
ashokavadana, atretochoana, dwarf banana, fata morgana, gabbie hanna, janet banana, satipatthana

13 letters:
canaan banana, crans-montana, edible banana, mychael danna, nakshatravana, rajesh khanna, romanzoffiana, svadhishthana

14 letters:
akshaye khanna, anas americana, cooking banana, en-men-dur-ana, kirjath-sannah, rhea americana, shakespeareana, superlambanana, twinkle khanna

15 letters:
circumvesuviana, japanese banana, tabernaemontana, ulmus americana

16 letters:
capital of ghana, champaign-urbana, ethiopian banana, sorbus americana

18 letters:
ayushmann khurrana, capital of indiana, capital of montana, veronica americana

20 letters:
capital of louisiana

5 letters:
grama, gamma

6 letters:
gramma, pajama

7 letters:
alabama

8 letters:
panorama

9 letters:
docudrama

10 letters:
blue grama

11 letters:
black grama

18 letters:
capital of alabama