to be between the ages of 20 and 29, 30 and 39 etc:
Matthews was already in his mid 40s.
➔ in all
at all1 (11)WORD CHOICE: WORD CHOICE: by, with, inby is used especially in passives, to say who or what does or causes something• She was hit by a truck.• a book written by Peter CareyUse with or inafter verbs which describe a state rather than an action• The room was lit with candles. • Her house is always filled with music. • The books were covered in dust.Use withto say what tool you use to do something• I got the stain out with this brush (NOT by this brush). ➔ See alsobyWORD CHOICE: WORD CHOICE: after, in, afterwardsafter is usually used as a preposition (followed by a noun)• I'll do it after lunch. • Please call after 9.30.afterfollowed by a time period is more often used to talk about past events• After a few minutes he stopped.infollowed by a time period is more often used to talk about future events• He'll be here in a few minutes.after can be used as an adverb, but only following another time adverb such as soon, not long, or shortly• Tim came in at midnight, and Lucy not long after.afterwardscan be used instead, and can also be used as an adverb on its own• His parents came shortly afterwards. • You can meet the actors afterwards (NOT after). ➔ See alsoafterWORD CHOICE WORD CHOICE at, in, onTalking about timeUse atwith clock times• at one o'clock • at 6.30with points of time in the day• at midnight • at noon • at dawn • at sunsetwith holiday periods, meaning the few days around the holiday• at Easter • at Diwaliwith weekend, in British English• See you at the weekend! • At weekends we go out.Use inwith parts of the day• in the morning• in the evening• I never watch TV in the daytime.with months, seasons, years, centuries• in May • in summertime • in 2004• in the 21st centuryUse onwith dates and specific days• on 29th July • on Tuesday afternoons• on the last day of termwith weekend, in American English• We sometimes go there on weekends.Talking about position and placeUse atwith particular positions or places• at the end of the corridor • at the back of the room • at the corner of the street to mean 'next to' or 'beside'• She sat at her desk. • He stopped me at the door.with words for buildings, for example airport, university, restaurant, art gallery• at the airport • at the Lyceum theatrewith city or place names, when you are talking about stopping during a journey• Does this train stop at Watford?!! BUT otherwise use in - see belowUse inwith a position or place, when something or someone is inside a larger thing such as a room• in the bath • in the kitchen • in the garden • in the doorwaywith cities, counties, states, and countries• When will you arrive in Tokyo?• He lives in Germany. • She's working in California.with the names of squares, plazas etc• in Times SquareUse onwith a position or place, when one thing is attached to or touching another• a spot on the end of her nose• a jacket on the back of a chairwith street names• on the High Street • on 42nd Street • on Broadway ➔ See alsoat
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.