Definition: At the present time; in the current period.

Example: Nowadays, many people work from home instead of going to an office.

Definition: Something that happens from time to time but not regularly; infrequent or occasional events or actions.

Example: We go to the beach for an occasional picnic during the summer.

Definition: At certain times, but not regularly or often.

Example: I occasionally go for a walk in the park on weekends.

Definition: Having existed for a long time; not new or recent. It can refer to things that are worn out or from a previous time period.

Example: My grandmother has an old photograph from her childhood.

Definition: A person who is advanced in age, often referring to elderly individuals or the elderly as a group.

Example: The community center offers activities for the old to stay active and social.

Definition: The term used to describe something that has existed for the longest time or is the most advanced in age compared to others.

Example: My grandmother is the oldest member of our family.

Definition: The condition of being advanced in years or having lived for a long time.

Example: The oldness of the building gives it a unique character.

Definition: Referring to something that existed or happened in the past but is no longer the case.

Example: The once bustling town is now quiet and empty.

Definition: At a single time; one time only.

Example: I visited that museum once when I was a child.

Definition: At the time that something happens; as soon as something occurs.

Example: Once the sun sets, it gets dark quickly.

Definition: A single occurrence or event; one time.

Example: I only visited that place once during my vacation.

Definition: Referring to a single unit or individual, distinct from others.

Example: She is the one person I trust the most.

Definition: A single unit or individual; the first number in counting, represented by the symbol 1.

Example: She gave me a one-dollar bill for my birthday.

Definition: A word used to refer to an unspecified individual or thing, often used in a general sense.

Example: One should always try to do their best in any situation.

Definition: Something that is currently happening or continuing without stopping.

Example: The ongoing project is expected to be completed by next year.

Definition: Happening at a good or suitable time, making it favorable for a specific situation or purpose.

Example: The rain was opportune for the farmers, as it helped their crops grow.