Princeton's WordNet

1. back and forth, backward and forward, to and fro(adverb)

   moving from one place to another and back again

   "he traveled back and forth between Los Angeles and New York"; "the treetops whipped to and fro in a frightening manner"; "the old man just sat on the porch and rocked back and forth all day"

Wiktionary

1. to and fro(Noun)

   The movement (of someone or something) forward followed by a return to the same position. May refer to a concept such as an emotional state or a relationship as well as a physical thing.

2. to and fro(Verb)

   To go back and forth; to alternate.

3. to and fro(Adverb)

   Back and forth; with an alternating motion.

4. to and fro(Adjective)

   Pertaining to something or someone moving forward and back to the same position.

• heen en weerAfrikaans
• جيئَةً وذهاباًArabic
• напред-назадBulgarian
• para trás e para a frentePortuguese (BR)
• sem a tamCzech
• hin und herGerman
• frem og tilbageDanish
• πέρα δώθεGreek
• de un lado al otro, yendo y viniendo, en un vaivénSpanish
• edasi-tagasiEstonian
• جلو و عقبFarsi
• edestakaisinFinnish
• de long en largeFrench
• הֵנָה וָהֵנָהHebrew
• इधर-उधरHindi
• amo-tamo, gore-doljeCroatian
• ide-odaHungarian
• hilir-mudikIndonesian
• til og fráIcelandic
• (avanti e indietro), (su e giù)Italian
• 行ったり来たりJapanese
• 이리저리 움직이는, 이리저리 움직임Korean
• pirmyn ir atgalLithuanian
• šurpu turpu; uz priekšu un atpakaļLatvian
• ke depan ke belakangMalay
• heen en weerDutch
• att og fram, fram og tilbakeNorwegian
• tam i z powrotemPolish
• para trás e para a frentePortuguese
• încolo şi încoaceRomanian
• взад и вперёдRussian
• sem a tamSlovak
• sem in tjaSlovenian
• napred-nazadSerbian
• fram och tillbakaSwedish
• กลับไปกลับมาThai
• öteye beriye, ileri geriTurkish
• 來回Chinese (Trad.)
• взад-впередUkrainian
• آگے پيچھےUrdu
• đi lùi và tiếnVietnamese
• 来回地Chinese (Simp.)