Synonym: ahead, before, beginning, chief, dominant, foremost, leading, main, preferably, primary, principal, rather, final, finally, last. Similar words: at first, first of all, first prize, the first person, at first sight, in the first place, first and foremost, upstairs. Meaning: [fɜrst /fɜːst] 
n. 1. the first or highest in an ordering or series 2. the first element in a countable series 3. the time at which something is supposed to begin 4. the fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate) 5. an honours degree of the highest class 6. the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving. adj. 1. preceding all others in time or space or degree 2. indicating the beginning unit in a series 3. serving to set in motion 4. serving to begin 5. ranking above all others 6. highest in pitch or chief among parts or voices or instruments or orchestra sections 7. being the gear producing the lowest drive speed. adv. 1. before anything else 2. the initial time 3. before another in time, space, or importance 4. prominently forward.
n. 1. the first or highest in an ordering or series 2. the first element in a countable series 3. the time at which something is supposed to begin 4. the fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate) 5. an honours degree of the highest class 6. the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving. adj. 1. preceding all others in time or space or degree 2. indicating the beginning unit in a series 3. serving to set in motion 4. serving to begin 5. ranking above all others 6. highest in pitch or chief among parts or voices or instruments or orchestra sections 7. being the gear producing the lowest drive speed. adv. 1. before anything else 2. the initial time 3. before another in time, space, or importance 4. prominently forward. 61. The stronger wrestler won the first throw.
62. Difficult the first time, easy the second.
63. First the curtains took fire and then the bedclothes.
64. They finished in joint first place.
65. The first scene was performed in mime.
66. I was 20 when I first fell in love.
67. Her first pregnancy ended in miscarriage.
68. Currie sidefooted his first goal of the season.
69. The clever girl bore off the first prize.
70. We had assembled for the first rehearsal.
71. It can be tricky at first, but persevere.
72. The housing shortage is more acute than first thought.
73. Better the last smile than the first laughter.
74. Student registration starts the first week in September.
75. The hall was packed out for Menuhin's first concert.
76. Spain was the first foreign country she had visited.
77. At first[sentencedict.com/first.html], he was really scared.
78. You will have to get official permission first.
79. It was the first time they had ever met.
80. This information is of the first importance.
81. The first gulp is the best.
82. Let's go to the theatre first and eat afterward.
83. First love is unforgettable all one is life.
84. He plunged head first into the stream.
85. They've leapfrogged from third to first place.
86. This was the first sexual relationship I had had.
87. The first half of the game was pretty dull.
88. He came first in the race.
89. Let's toss a coin to see who goes first.
90. He won his first cap for England against France.
More similar words: at first, first of all, first prize, the first person, at first sight, in the first place, first and foremost, upstairs, firm, burst, at worst, on fire, fire up, firmly, burst in, confirm, burst into, understand, catch fire, set fire to, burst out laughing.