Clue Breakdown
- "How many": This part of the clue hints at something numerical or related to a count or quantity.
- "Travel in Europe": This part refers to a common form of travel or currency within Europe.
Solution: "EURO"
- EURO: The euro (€) is the official currency of the eurozone, which includes 19 of the 27 member states of the European Union. It is widely used for travel and transactions within Europe.
Reasoning
- Currency: Since the euro is used by many people traveling in Europe, it fits the clue both in terms of travel and quantity (how many).
- Wordplay: Crosswords often use wordplay and indirect hints. "How many" combined with "travel in Europe" can be interpreted as a hint toward the common currency used by many travelers in Europe, which is the euro.