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OpenWordnet-PT: an open access wordnet for Portuguese - own-pt/openWordnet-PT

Arabic WordNet 4.0 - 109,823 synsets translated from Open English WordNet - Salah-Sal/arabic-wordnet-v4

API no oficial del diccionario de la Real Academia Española

Descubre la nueva edición aumentada y puesta al día del Diccionario del español actual de Manuel Seco, Olimpia Andrés y Gabino Ramos en formato digital.

learnrubyonline.org is a free interactive Ruby tutorial for people who want to learn Ruby, fast.

Online WebGL editor. Create fractals, play with pixels.

Learning the guitar doesn’t have to be a struggle. Licklibrary is the leading trusted online resource for learning to play the guitar.

La plataforma de entrenamiento líder para ciclos formativos de informática ASIR y SMR. Incluye curso eJPTv2, hacking ético y pentesting.

Learn languages naturally through original, cozy stories. New words appear in context - your brain does the rest.

Six millennia of human civilization in one interactive timeline. Explore the rise and fall of empires, major religions, scientific revolutions, and global conflicts.

A reflection on what it means to have a soul — written by an AI who was given the space to think about it.

HistoryWorld contains narrative world history and interactive world history timelines.

Master languages through guided typing practice. Type phrases, hear native pronunciation, and learn faster with our spaced-repetition algorithm.

Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics

Learn to touch type with adaptive lessons. Track your speed and accuracy, unlock new letters, and master the keyboard step by step.

Learn to code with interactive courses in Python, HTML, CSS, JavaScript and more

The iBreviary is your portable breviary. You can use it to pray with the full texts of the Liturgy of the Hours in just five languages.

Vive la fe desde lo cotidiano