What´s the pronunciation in "signal" and "sign"? What does the flight attendant use?

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sig·nal  (sgnl) (Click for pronunciation and more)

n.

1.

a. An indicator, such as a gesture or colored light, that serves as a means of communication. See Synonyms at gesture.

b. A message communicated by such means.

2. Something that incites action: The peace treaty was the signal for celebration.

3. Electronics An impulse or a fluctuating electric quantity, such as voltage, current, or electric field strength, whose variations represent coded information.

4. The sound, image, or message transmitted or received in telegraphy, telephony, radio, television, or radar.

 

 

sign  (sn) (Click for pronunciation and more)

n.

1. Something that suggests the presence or existence of a fact, condition, or quality.

2.

a. An act or gesture used to convey an idea, a desire, information, or a command: gave the go-ahead sign.

b. Sign language.

3.

a. A displayed structure bearing lettering or symbols, used to identify or advertise a place of business: a motel with a flashing neon sign outside.

b. A posted notice bearing a designation, direction, or command: an EXIT sign above a door; a traffic sign.

4. A conventional figure or device that stands for a word, phrase, or operation; a symbol, as in mathematics or in musical notation.