n.[C]
- 信号;暗号[+to-v][+that]
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A red lamp is used as a danger
signal.
红灯用作危险信号。
- 信号器;交通指示灯;【铁】信号机
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The train must stop when the
signal's red.
信号机是红色时,火车必须停驶。
- 导因;近因;导火线[(+for)]
- 标志;表示
a.
- 作为信号的[B]
- 显著的,非凡的
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This year has seen one
signal triumph for them in the election.
今年是他们在选举中取得重大胜利的一年。
vt.
- 用信号发出;标志
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A period
signals the end of a sentence.
句号表示一个句子结束了。
- 用信号通知,以动作向……示意[O2][+that]
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She
signaled the car to stop by raising her hand.
她举手示意车停下。
vi.
- 发信号,打信号[(+to/for)]
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The teacher
signaled for quiet.
教师示意大家安静。
派生
n.
signaler; [BrE] signaller
ad.
signally
辨析
signal1
n.
- a gesture, action, or sound conveying information or an instruction.
- an indication of a state of affairs.
- an event or statement that provides the impulse or occasion for something to happen.
- a light or semaphore on a railway, giving indications to train drivers of whether or not to proceed.
- Bridge a prearranged convention of bidding or play intended to convey information to one's partner.
- an electrical impulse or radio wave transmitted or received.
v.
(signals, signalling, signalled; US signals, signaling, signaled)
- transmit a signal.
- instruct or indicate by means of a signal.
Derivative
Etymology
ME: from OFr., from med. L. signale, neut. of late L. signalis, from L. signum (see sign).
signal2
adj.
striking in extent, seriousness, or importance.
Derivative
Etymology
C17: from Fr. signalé, from the Ital. past part. segnalato ‘distinguished’, from segnale ‘a signal’.