Question

signal n.信号；v.发信号；a.显著的 signal (n.) late 14c., "visible sign, indication," from Old French signal, seignal "seal, imprint, sign, mark," from Medieval Latin signale "a signal," from Late Latin signalis (adj.) "used as a signal, pertaining to a sign," from Latin signum "signal, sign" (see sign (n.)). Restricted sense "agreed-upon sign (to commence or desist, etc.) is from 1590s. Meaning "modulation of an electric current" is from 1855.signal (v.) 1805, "to make signals to," from signal (n.). Related: Signaled; signaling. Earlier verb was signalize (1650s).signal (adj.) "remarkable, striking, notable" ("serving as a sign"), 1640s, from French signalé, past participle of signaler "to distinguish, signal" (see signal (n.)). 【记】来自sign

Accepted Answer

['signl] 【英】 信号(something intended to warn, command, or give a message)发信号(give a signal)【考】 反义词：unremarkabl e(不明显的)【记】 sign(信号)+al adj. 显著的; 出色的; n 信号; v 发(信号)【记】晚上的信号灯是很明显的.【参】signatory(n 签字者); signify(v 表示; 意味)【反】unremarkable(adj 寻常的; 不明显的)

单词	signal
音标	['signl]
解释	n.信号；v.发信号；a.显著的
红宝书	【英】信号(something intended to warn, command, or give a message)发信号(give a signal) 【考】反义词：unremarkabl e(不明显的) 【记】 sign(信号)+al
字源	signal (n.) late 14c., "visible sign, indication," from Old French signal, seignal "seal, imprint, sign, mark," from Medieval Latin signale "a signal," from Late Latin signalis (adj.) "used as a signal, pertaining to a sign," from Latin signum "signal, sign" (see sign (n.)). Restricted sense "agreed-upon sign (to commence or desist, etc.) is from 1590s. Meaning "modulation of an electric current" is from 1855. signal (v.) 1805, "to make signals to," from signal (n.). Related: Signaled; signaling. Earlier verb was signalize (1650s). signal (adj.) "remarkable, striking, notable" ("serving as a sign"), 1640s, from French signalé, past participle of signaler "to distinguish, signal" (see signal (n.)).
不择手段背单词	adj. 显著的; 出色的; n 信号; v 发(信号) 【记】晚上的信号灯是很明显的. 【参】signatory(n 签字者); signify(v 表示; 意味) 【反】unremarkable(adj 寻常的; 不明显的)
趣味全助记	【记】来自sign

Signal Latin Late Sign French Adj N Signl