Zarazem
Zarazem is a Polish adverb meaning at the same time or simultaneously. It is used to express that two states or actions occur together or that two aspects coexist within a single subject. The sense can be strengthened when contrasting or qualifying statements; for example, "Był zarazem młody i doświadczony," meaning he was both young and experienced. It can also connect two clauses to indicate simultaneity: "Zarazem pracował nad projektem i odpoczywał."
In usage, zarazem is relatively formal and common in written Polish. In everyday speech, synonyms such as
Etymology and form: the word derives from za- plus razem (together), reflecting its sense of doing things