- Published on
Education #2: A Compass for Designated Words
- Authors

- Name
- Rob
- @x
Prompt
What are Designated Words (Vyjmenovaná slova), and why are they challenging for children to learn?
Output: Gemini2.5
What are Designated Words?
- Core Concept: They are specific sets of Czech root words where the hard 'y' (called ypsilon or tvrdé ý) is written after certain consonants (B, F, L, M, P, S, V, Z), even though the pronunciation might suggest a soft 'i' (měkké í) according to modern Czech phonetics.
- The Consonants: The rule applies specifically after these eight consonants: B, F, L, M, P, S, V, Z.
- Historical Spelling: Designated Words are essentially a historical spelling convention. In Old Czech, the pronunciation distinction between pairs like být (to be) and bít (to hit) was clearer. Over time, pronunciation shifted and merged for many pairs, but the traditional spelling differentiating these specific word roots was retained.
- Lists: They are taught as lists, one set for each of the relevant consonants (B, F, L, M, P, S, V, Z). For example, the list for 'B' includes words like být (to be), bydlit (to live/reside), obyvatel (inhabitant), příbytek (dwelling), nábytek (furniture), býk (bull), bylina (herb), kobyla (mare), babyka (field maple).
- Scope: The rule doesn't just apply to the base words listed but also to their derivatives (words formed using prefixes and suffixes, e.g., bydlit -> obydlí, zabydlet se) and related words sharing the same root.
Why are they challenging for children to learn?
Designated Words are notoriously one of the biggest hurdles in Czech elementary school grammar for several reasons:
- Pronunciation Mismatch (The Biggest Challenge): Children learn basic spelling based on phonetics – how words sound. However, for Designated Words, the sound is often misleading. The consonant before the 'y' might sound soft (like it should be followed by 'i'), or identical to a word spelled with 'i'.
- Example: být (to be) and bít (to hit) sound exactly the same in modern Czech. A child cannot rely on their ear to know whether to write 'y' or 'i'. They must know that být is a Designated Word.
- Rote Memorization: Because the spelling isn't reliably phonetic for these words, children largely have to memorize the lists associated with each consonant (B, F, L, M, P, S, V, Z). This requires significant effort and repetition.
- Arbitrary Nature (from a child's perspective): Without understanding the historical linguistic reasons (which are too complex for young children), the lists seem arbitrary. Why these specific words and not others? There's no simple, intuitive rule based on meaning or sound that covers all cases.
- Derivatives and Related Words: It's not enough to memorize just the core list. Children need to learn to recognize the designated root within longer, more complex words (e.g., recognizing the 'bydl-' root from bydlit inside neobydlený - uninhabited). This requires morphological awareness.
- Homophones: The pronunciation mismatch leads to many homophones – words that sound the same but have different meanings and spellings ('y' vs. 'i'). Children must learn to differentiate based on context and meaning, adding another layer of complexity beyond just the spelling rule itself. Examples: být/bít, mýt/mít.
- Developmental Stage: Designated Words are typically taught around 3rd grade (age 8-9). At this age, children are still developing abstract reasoning and memorization skills, making this complex, non-phonetic rule particularly difficult.
In summary, Designated Words are a core part of Czech orthography based on historical roots, requiring learners to override phonetic intuition and rely heavily on memorization and contextual understanding, making them a significant challenge for young students.
Solution
This simple audiovisual tool aims to make a challenging task easier for children by connecting letters, words, and sounds. It supports memorization, especially for those with strong visual or auditory memory. Additionally, it provides examples of derived and tricky words that are often encountered.
The tool can be found here: Compass for Designated Words

The controls are intentionally simple and left unexplained, encouraging children to discover how things work through hands-on exploration. If a child plays with it for a short time and remembers even a few words, the goal is achieved :)
The tool was created with the help of Gemini 2.5 and the p5.js library. Very few manual adjustments were made, mainly focusing on appearance and setting some parameters. Although the code is approximately 1700 lines long, Gemini 2.5 was able to maintain context without issue and perform complex modifications across the entire script.