| un |
| 1. art. a | |
| 2. num. (before the noun) apocopic form of uno one | |
| ensayo |
| 1. n-m. essay, paper | |
| 2. n-m. test, trial, testing, experiment | |
| 3. n-m. try, attempt | |
| 4. n-m. rehearsal, practice, run-through, dry run | |
| 5. n-m. assay | |
| 6. v. first-person singular present indicative of ensayar | |
| ensayar |
| 1. v. to rehearse, to practice, to run lines | |
| 2. v. to test, to try out, to pilot, to experiment | |
| 3. v. to assay | |
| O |
| 1. Letter. the 16th letter of the Spanish alphabet | |
| 2. n. abbreviation of oeste; west | |
| 3. conj. or | |
| ¿Quieres un café o algo más? - Do you want a coffee or something else? | |
| 4. conj. either … or | |
| (ant-lite, ni, alt1=ni … ni) | |
| artículo |
| 1. n-m. (grammar) article | |
| 2. n-m. (journalism) article | |
| 3. n-m. article (in a dictionary, encyclopedia etc.) | |
| 4. n-m. article (for sale) | |
| 5. n-m. article (of a legal text) | |
