Princeton's WordNet

1. meet, run into, encounter, run across, come across, see(verb)

   come together

   "I'll probably see you at the meeting"; "How nice to see you again!"

Kernerman English Learner's Dictionary

1. run across(verb)ʌn

   to meet or find by chance

   I ran across some old pictures when I was cleaning.

Wiktionary

1. run across(Verb)

   To cross by running.

2. run across(Verb)

   To find or discover by chance.

• ontmoet, toevallig ontmoetAfrikaans
• يَلْتَقي صُدْفَةًArabic
• посрещамBulgarian
• encontrarPortuguese (BR)
• náhodou potkatCzech
• jemandem in die Arme laufenGerman
• løbe ind iDanish
• συναντώ τυχαίαGreek
• cruzarse con, encontrar por casualidadSpanish
• kokku sattumaEstonian
• ملاقت کردن؛ اتفاقا بر خورد کردنFarsi
• törmätäFinnish
• rencontrer qqn par hasardFrench
• לְהִתַקֵלHebrew
• सहसा मिल जानाHindi
• naići na, slučajno srestiCroatian
• összeszalad vkivelHungarian
• bertemuIndonesian
• hitta, rekastáIcelandic
• imbattersi, incontrare per casoItalian
• 出会うJapanese
• 우연히 만나다Korean
• netikėtai sutiktiLithuanian
• nejauši satiktLatvian
• terserempakMalay
• tegen het lijf lopenDutch
• treffe tilfeldig, råkeNorwegian
• natknąć się naPolish
• ملاقت کردن؛ اتفاقا بر خورد کردنPersian
• ملاقات کولPashto
• encontrarPortuguese
• aîntâlni pe cineva din întâmplareRomanian
• случайно встретитьRussian
• náhodou stretnúťSlovak
• naleteti (na koga)Slovenian
• naleteti naSerbian
• träffa (stöta) påSwedish
• พบโดยบังเอิญThai
• karşılaşmak, rastlamakTurkish
• 碰見Chinese (Trad.)
• випадково зустрітисяUkrainian
• ملاقات کرناUrdu
• tình cờ gặp aiVietnamese
• 偶然碰见Chinese (Simp.)