I'm gonna take a guess that you're running KDE. In which case:
Go to ~/Desktop
open the file "trash.desktop" with your favourite editor.
This is what mine looks like:
Code:
[Desktop Entry]
Type=Link
URL=trash:/
Encoding=UTF-8
Icon=trashcan_full
EmptyIcon=trashcan_empty
Name=Trash
Name[af]=Gemors
Name[ar]=سÙØ© اÙÙÙاÙات
Name[az]=Zibil
Name[be]=СÑмеÑнÑк
Name[bg]=ÐоÑÑе
Name[bn]=à¦à¦¬à¦°à§à¦à¦¨à¦¾
Name[br]=Pod-lastez
Name[bs]=SmeÄe
Name[ca]=Paperera
Name[cs]=Koš
Name[cy]=Sbwriel
Name[da]=Affald
Name[de]=Mülleimer
Name[el]=ÎÎ¬Î´Î¿Ï Î±ÏοÏÏιμμάÏÏν
Name[en_GB]=Wastebin
Name[eo]=Rubujo
Name[es]=Papelera
Name[et]=Prügikast
Name[eu]=Zaborra
Name[fa]=زباÙÙ
Name[fi]=Roskakori
Name[fr]=Corbeille
Name[fy]=Jiskefet
Name[ga]=Bruscar
Name[gl]=Lixo
Name[he]=×שפ×
Name[hi]=रदà¥à¤¦à¥
Name[hr]=Otpad
Name[hsb]=Papjernik
Name[hu]=Szemétkosár
Name[is]=Rusl
Name[it]=Cestino
Name[ja]=ãã¿ç®±
Name[km]=áá»ááááá¶á
Name[ko]=ì°ë*기íµ
Name[lo]=àºàº±àºàºàºµà»à»àº«àºàº·à»àº*
Name[lt]=Å*iukÅ¡liadÄžÄ
Name[lv]=Miskaste
Name[mk]=ÐоÑпа
Name[mn]=Хогийн Ñав
Name[ms]=Sampah
Name[mt]=Skart
Name[nb]=Papirkurv
Name[nds]=Affalltünn
Name[nl]=Prullenbak
Name[nn]=Papirkorg
Name[nso]=Seswaraditlakala
Name[pa]=ਰੱਦà©
Name[pl]=Kosz
Name[pt]=Lixo
Name[pt_BR]=Lixo
Name[ro]=Gunoi
Name[ru]=ÐоÑзина
Name[se]=Ruskalihtti
Name[sk]=Kôš
Name[sl]=Smeti
Name[sr]=Смеѵ
Name[sr@Latn]=SmeÄe
Name[sv]=Skräp
Name[ta]=à®à¯à®ªà¯à®ªà¯
Name[tg]=ÐÑлоÑдон
Name[th]=à¸à¸±à¸à¸à¸¢à¸°
Name[tr]=Ãöp
Name[tt]=Ãüplek
Name[uk]=СмÑÑник
Name[uz]=Ð§Ð¸Ò¸Ð½Ð´Ð¸Ð»Ð°Ñ ÒÑиÑи
Name[ven]=Tshikha
Name[vi]=Thùng rác
Name[wa]=Batch
Name[xh]=Inkukumo
Name[zh_CN]=åæ¶ç«
Name[zh_TW]=è³æºåæ¶æ¡¶
Name[zu]=Izibi
Comment=Contains removed files
Comment[af]=Bevat verwyder lêers
Comment[ar]=تØ*تÙ٠عÙ٠اÙÙÙÙات اÙÙÙغاة
Comment[az]=SilinmiŠfaylları daxil edir
Comment[be]=ÐÑмÑÑÑае вÑдаленÑÑ ÑайлÑ
Comment[bg]=ÐзÑÑиÑи Ñайлове
Comment[bn]=মà§à¦§ ফà§à¦²à¦¾ ফাà¦à¦² থাà¦à§
Comment[bs]=Sadrži izbrisane datoteke
Comment[ca]=Conté els fitxers esborrats
Comment[cs]=Obsahuje odstranÄé soubory
Comment[cy]=Yn cynnwys ffeiliau sydd wedi eu gwaredu
Comment[da]=Indeholder fjernede filer
Comment[de]=Enthält gelöschte Dateien
Comment[el]=Î*εÏιÎ*Ïει ÏβηÏμÎ*να αÏÏεία
Comment[eo]=Enhavas forigitajn dosierojn
Comment[es]=Contiene archivos borrados
Comment[et]=Sisaldab eemaldatud faile
Comment[eu]=Kendutako fitxategiak dauzka
Comment[fa]=شاÙ٠پرÙÙدÙâÙØ§Û Ø*ذ٠شدÙ
Comment[fi]=Sisältää poistettuja tiedostoja
Comment[fr]=Contient les fichiers supprimés
Comment[fy]=Befettet fuortsmieten triemmen
Comment[gl]=Contén arquivos borrados
Comment[he]=×××× ×§×צ×× ×©××סר×
Comment[hi]=मिà¤à¤¾à¤ à¤à¤ फ़ाà¤à¤²à¥à¤ à¤à¥ रà¤à¤¤à¤¾ हà¥
Comment[hr]=Sadrži izbrisane datoteke
Comment[hu]=Itt találhatók a törölt fájlok
Comment[is]=Inniheldur fjarlægðar skrár
Comment[it]=Contiene i file cestinati
Comment[ja]=åé¤ããããã¡ã¤ã«ãä¿æãã¦ãã¾ã
Comment[km]=áááá»áâá¯ááá¶áâááááá¶áâááááá
Comment[ko]=ì§ìì§ íì¼ì ë´ê³* ììµëë¤
Comment[lo]=àºàºµà»àºªàº³àº¥àº±àºà»àºàº±àºà»àºà»àº¡àºàº*àºà»àºàº»à»àº²àºàºµà»àºà»àº*àºàºàº²àºàº¥àº·àº
Comment[lt]=Äia yra iÅ¡trintos bylos
Comment[lv]=Satur aizvÄktos failus
Comment[mk]=СодÑжи оÑÑÑÑанеÑи даÑоÑеки
Comment[mn]=УÑгагдÑан ÑайлÑÑд агÑÑлагдана
Comment[ms]=Mengandungi fail yang dibuang
Comment[mt]=Fih fajls mormija
Comment[nb]=Inneholder slettede filer
Comment[nds]=Dor sünd wegdaan Dateien binnen
Comment[nl]=Bevat de verwijderde bestanden
Comment[nn]=Inneheld sletta filer
Comment[nso]=Ena le difaele tseo di tlositswego
Comment[pa]=ਹà¨à¨¾à¨à¨à¨ ਫਾà¨à¨³à¨¾à¨ ਰੱà¨à¨¦à¨¾ ਹà©
Comment[pl]=Zawiera usuniÄte pliki
Comment[pt]=Contém os ficheiros apagados
Comment[pt_BR]=Contém arquivos removidos
Comment[ro]=ConÅ£ine fiÅiere Återse
Comment[ru]=СодеÑÐ¶Ð¸Ñ ÑдалÑннÑе ÑайлÑ
Comment[se]=Dáppe leat bálkestuvvon fiillat
Comment[sk]=Obsahuje mazané súbory
Comment[sl]=Vsebuje odstranjene datoteke
Comment[sr]=СадÑжи ÑклоÑене ÑаÑлове
Comment[sr@Latn]=Sadrži uklonjene fajlove
Comment[sv]=Innehåller borttagna filer
Comment[ta]=நà¯à®à¯à®à®ªà¯à®ªà®à¯à® à®à¯à®ªà¯à®ªà¯à®à®³à¯ à®à®³à¯à®³à®¤à¯
Comment[tg]=Файлҳои нобÑдÑÑда доÑад
Comment[th]=à¸à¸µà¹à¸ªà¸³à¸«à¸£à¸±à¸à¹à¸à¹à¸à¹à¸à¹à¸¡à¸à¸µà¹à¸à¸¸à¸à¸à¹à¸*à¸à¸à¸²à¸£à¸¥à¸
Comment[tr]=SilinmiŠdosyaları içerir
Comment[tt]=Beterelgän biremnär yatu urını
Comment[uk]=ÐÑÑÑиÑÑ Ð²Ð¸Ð»ÑÑÐµÐ½Ñ Ñайли
Comment[uz]=Ðлиб ÑаÑланган ÑайллаÑдан ибоÑаÑ
Comment[ven]=Ina faela dzo bviswaho
Comment[vi]=Chứa táº*p tin Äã vứt
Comment[xh]=Iqulathe iifayile ezisusiweyo
Comment[zh_CN]=ä¿å*临æ¶å*é¤çæ件
Comment[zh_TW]=åå«åªé¤çæªæ¡
Comment[zu]=Iqukethe amafayela agudluziwe
OnlyShowIn=KDE
Change the seventh line "Name=Trash" to "Name=Recycle Bin"
Then refresh your desktop and bingo you have renamed trash.
