Questions & Answers about La lako ne estas por la cemento.
La is the Esperanto definite article, equivalent to English the.
So:
- la lako = the lacquer
- la cemento = the cement
Esperanto has only one article, la, and it never changes for gender, number, or case.
If you removed la, the sentence would sound more like Lacquer is not for cement or A lacquer is not for cement, depending on context.
Lako means lacquer or sometimes varnish/lacquer-type coating, depending on context.
For an English speaker, it is helpful to notice that it is a familiar-looking international word. Esperanto often uses words that resemble forms found in European languages.
So La lako is simply The lacquer.