The idiom 'penny for your thoughts' is an old-fashioned expression used to ask someone what they are thinking about. It implies offering a small amount of money (a penny) in exchange for their thoughts. It is typically used when someone appears deep in thought or lost in their mind, such as when a friend becomes quiet and looks out the window. It can also be used in professional settings to inquire about a coworker's thoughts if they seem frustrated or preoccupied.
'Complement' with an 'i' refers to a nice comment made to someone, either as a noun or a verb. For example, 'I love your shirt' is a compliment. 'Complement' with an 'e' refers to something that pairs or matches well with something else, such as a sauce that complements a dessert. Both words can function as nouns and verbs, but their meanings and contexts differ significantly.
'Why did you do that?' is used to ask about a specific past action and its reason, focusing on something that actually happened. In contrast, 'Why would you do that?' can refer to a theoretical future situation or express confusion about a past decision that seems illogical. The latter is often used to understand someone's reasoning in a broader or more critical sense.
'Penny for your thoughts' is considered old-fashioned because it reflects a time when a penny had more value and the phrase was commonly used to inquire about someone's thoughts. Today, it is less frequently used in everyday conversation, though some people may still use it for its quaint or nostalgic appeal.
Examples of using 'complement' with an 'e' include: 'The sauce was a perfect complement to the dessert,' meaning the sauce and dessert paired well together, or 'That sweater is a perfect complement to your dress,' indicating that the sweater and dress match nicely. The term refers to something that enhances or suits another thing effectively.