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ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.four-year-old - four years of age
young, immature - (used of living things especially persons) in an early period of life or development or growth; "young people"


(foː) noun
1. the number or figure 4.
2. the age of 4.
1. 4 in number.
2. aged 4.
having four (of something). a four-man team.
fourth noun
1. one of four equal parts.
2. (also adjective) the last of four (people, things etc); the next after the third.
ˈfoursome noun
a group of four people, especially for playing games, eg golf. We'll play in a foursome.
ˈfour-year-old noun
a person or animal that is four years old.
(of a person, animal or thing) that is four years old.
on all fours
on hands and knees. He went up the steep path on all fours.
References in classic literature ?
Their wives never came to the island until late in May or early in June, for they did not care to be torn to pieces; and the young two-, three-, and four-year-old seals who had not begun housekeeping went inland about half a mile through the ranks of the fighters and played about on the sand dunes in droves and legions, and rubbed off every single green thing that grew.
The three- and four-year-old holluschickie romped down from Hutchinson's Hill crying: "Out of the way, youngsters
Fresh scandals have eclipsed it, and their more piquant details have drawn the gossips away from this four-year-old drama.
No sooner had I espied them than I determined to possess one of them; nor did it take me long to select a beautiful young stallion--a four-year-old, I guessed him.
Just then Jamie came back, and Rose understood the smile, for his dolly proved to be a pretty four-year-old little girl, who trotted in as fast as her fat legs would carry her, and making straight for the shells, scrambled up an armful, saying, with a laugh that showed her little white teeth
All this they read with saucer eyes, and erect and primitive curiosity, and with unwearied gizzard, whose corrugations even yet need no sharpening, just as some little four-year-old bencher his two-cent gilt-covered edition of Cinderella -- without any improvement, that I can see, in the pronunciation, or accent, or emphasis, or any more skill in extracting or inserting the moral.
Sure me fawther got a goold medal (and his Excellency himself eat a slice of it, and said never was finer mate in his loif) for a four-year-old heifer, the like of which ye never saw in this country any day.
Now he was not even the same as when she had left him; he was still further from the four-year-old baby, more grown and thinner.
155 a four-year-old Milan half-sister to Grade 1 Triumph Hurdle hero Spectroscope.
Produced by CINAR in association with PBS, CAILLOU (pronounced KY-YOO), presents a unique combination of animation, puppets, music, dance, and live action, to chronicle its hero's adventures as he bravely encounters the infinite miracles and dilemmas of four-year-old life.
He is a half-brother to US Grade 3 winner Pasar Silbano 146 Miami Gator; four-year-old gelding by Titus Livius who has won nine times and is from the family of 2005 champion juvenile filly Flashy Wings 147 Icon Dream; a winning four-year-old gelded son of Sadler's Wells out of Silver Skates, by Slip Anchor; he is a half-brother to Starfish, the dam of Group 1 Phoenix Stakes winner La Collina 159 Lightening Stricks; this four-year-old colt by King's Best is a dual winner and half-brother to 2010 Arlington Million winner Debussy Tom Pennington
Summary: Detectives have launched an inquiry after a four-year-old boy was found stabbed to death at his home.