narrow down

词形变化：

形容词: narrowish | 副词: narrowly | 形容词比较级: narrower | 形容词最高级: narrowest | 名词: narrowness | 动词过去式: narrowed | 动词过去分词: narrowed | 动词现在分词: narrowing | 动词第三人称单数: narrows |

同义词：

slender | tight | thin | contracted | taper | contract | fine | slim | slight | narrow down | tapered | constricted | tighten | restrict | limit | reduce | close | restricted | confined | limited | cramped | qualify | shorten | alley | localize | provincial | lessen | meager | lean | nail down | constrict | specialize | constringe | pin down | specify | narrow-minded | peg down | specialise | minute |

反义词：

wide | broad-minded | widen | broad |