Perhaps the best word/phrase that can be learnt, used and meant is the old and faithful “Thank You” 

So in appreciation for visiting my website; 

Here goes:

AFRIKAANS – dankie
ALBANIAN – faleminderit
ARABIC – shukran
ARMENIAN – Շնորհակալություն / chnorakaloutioun
BOSNIAN – hvala (HVAH-lah)
BULGARIAN – благодаря / blagodaria
CATALAN – gràcies (GRAH-syuhs)
CANTONESE – M̀h’gōi
CROATIAN – hvala (HVAH-lah)
CZECH – děkuji (Dyekooyih)
DANISH – tak (tahg)
DUTCH – dank u
ESTONIAN – tänan (TA-nahn)
FINNISH – kiitos (KEE-tohss)
FRENCH – merci
GERMAN – danke
GREEK – ευχαριστώ (ef-hah-rees-TOH)
HAWAIIAN – mahalo (ma-HA-lo)
HEBREW – .תודה  / todah (toh-DAH)
HINDI – dhanyavād / shukriya
HUNGARIAN – köszönöm (KØ-sø-nøm)
ICELANDIC – takk (tahk)
INDONESIAN – terima kasih. (tuh-REE-mah KAH-see)
ITALIAN – grazie (GRAHT-tsyeh)
JAPANESE – arigatô (ah-ree-GAH-toh)
KOREAN – 감사합니다 (gamsahamnida)
LATVIAN – paldies (PUHL-dyehs)
LEBANESE – choukrane
LITHUANIAN – ačiū (AH-choo)
MACEDONIAN – Благодарам / blagodaram (blah-GOH-dah-rahm)
MALAY – terima kasih (TREE-muh KAH-seh)
MALTESE – grazzi (GRUTS-ee)
MANDARIN – Xièxiè
MONGOLIAN – Баярлалаа (bayarlalaa)
NORWEGIAN – takk
POLISH – dziękuję (Jenkoo-yen)  
PORTUGUESE – obrigado [masculine]  / obrigada [feminine] (oh-bree-GAH-doo / oh-bree-GAH-dah)
ROMANIAN – mulţumesc (mool-tzoo-MESK)
RUSSIAN – спасибо (spuh-SEE-buh)
SERBIAN – xвала / hvala (HVAH-lah)
SLOVAK – Ďakujem (JAH-koo-yehm)
SLOVENIAN – hvala (HVAA-lah)
SPANISH – gracias (GRAH-syahs)
SWEDISH – tack
TAMIL – nandri
THAI – kop khun
TURKISH – teşekkür ederim (teh shek uer eh der eem)
UKRAINIAN – Дякую (DYAH-koo-yoo)
WELSH – diolch (DEE-ol’ch)
YIDDISH – a dank
ZULU – ngiyabonga

For more fun, frolicks & facts -

Hope to see you again!