a distinct layer or level within a system, often conceived as having depth or hierarchy

vrstva, úroveň
a problem or question that is confusing and needs a lot of skill or effort to solve or answer

hádanka, hlavolam
a section of additional material that is usually added at the end of a book

dodatek, příloha
a single-celled microorganism that typically reproduces by cell division and can be found in various environments, including soil, water, and living organisms

bakterie, mikrob
a large retail store selling various goods, or a particular type of goods

velký obchodní dům, emporium
a shell beads used by some Native American tribes as currency or ceremonial items

wampum (mušlové korálky používané některými kmeny původních Američanů jako měna nebo obřadní předměty), wampum korálky
a device with a long thin bar and a weight at the end that swings side to side to keep a clock working

kyvadlo, pendulum
the wall separating the audience and the stage in a theater hall, including the arch on its top

proscénium, proscéniový oblouk
a tarred fiber used for caulking seams in wooden ships and as insulation in plumbing

koudel, dehtované vlákno
a single piece of information or a reference point used in analysis or measurement

údaj, referenční bod
a concise collection or summary of information, typically presented in a single volume or document

kompendium, shrnutí
severe criticism or public condemnation, often directed at someone's actions or behavior that is considered shameful or disgraceful

hanba, odsouzení
a point or support on which a lever pivots or rotates in order to lift or move objects

opěrný bod, podpěra
(anatomy) the bone structure that surrounds and protects the brain

lebka, kranium
an unpleasant or noxious odor, typically emanating from decaying matter or industrial processes

zápach, emise
a period of one thousand years, usually calculated from the year of the birth of Jesus Christ

tisíciletí, milenium
a temporary suspension or halt of an ongoing activity, often imposed by an authority

moratorium, dočasné pozastavení
a formal expression of praise or tribute, typically delivered in speech or writing

chvalořeč, panegyrik
a facility offering care for patients with mental or medical conditions needing extended treatment

psychiatrická léčebna, ústav pro duševně choré
a questionable or unproven remedy or treatment, often sold with exaggerated claims of effectiveness

nostrum, šarlatánský lék
