Synonym: big H, boom, hell dust, nose drops, roar, roaring, scag, skag, smack. Similar words: under, plunder, founder, undergo, under way, underway, fall under, undercut. Meaning: ['θʌndə(r)] 
n. 1. a deep prolonged loud noise 2. a booming or crashing noise caused by air expanding along the path of a bolt of lightning 3. street names for heroin. v. 1. move fast, noisily, and heavily 2. utter words loudly and forcefully 3. be the case that thunder is being heard 4. to make or produce a loud noise.
n. 1. a deep prolonged loud noise 2. a booming or crashing noise caused by air expanding along the path of a bolt of lightning 3. street names for heroin. v. 1. move fast, noisily, and heavily 2. utter words loudly and forcefully 3. be the case that thunder is being heard 4. to make or produce a loud noise. 
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(121) Expect thunder, expect lightning, expect country and blues and rock and expect him to offer the unexpected, too.
(122) As she neared her home, she heard the thunder of hooves behind her and turning saw the water-horse coming for her.
(123) A little bit of thunder rolled through the evening sky, far off.
(124) It moved over to the north before it reached the camp, so that we never heard much of the thunder.
(125) Thunder he flatten ears, lightning he blind eyes, rain he lash flesh, wind he freeze skin.
(126) Thunder, lightning and a torrential downpour provided an unreal prelude in the futuristic San Nicola stadium.
(127) There was a great summer storm, with thunder and lightning and heavy rain.
(128) My attention is drawn back to the unpleasant here and now by a banging gavel: thunder shakes the firmament.
(129) One can tell the distance of a storm by the delay between the lightning and its associated thunder.
(130) Their presence was all the more sinister amidst the approaching thunder of anticlericalism.
(131) A crash of thunder boomed so loudly that the floor shook.
(132) Lightning flashed, an enormous zigzag of it ripping across the sky, followed by a deep rumble of thunder.
(133) A sheet of lightning flashed across the waters, to be followed, seconds later, by a roll of thunder.
(134) A strong wind was now blowing and there was a loud crack of thunder.
(135) There was a flash of lightning and then the rumble of distant thunder.
(136) Later in the afternoon the first peals of thunder rolled across the sky.
(137) A glimmer of lightning lit the window again, and the thunder could be heard,(sentencedict.com/thunder.html) distant and muted.
(138) One hot late-summer evening as Virginia left Pack Meeting thunder began to roll across the sky.
(139) Prowling, scuffling, moving around out there somewhere ... There was another crash of thunder.
(140) Downpours, lightning and thunder, high winds, a tornado that barely missed carrying away the house.
(141) The sky had darkened and thunder rolled in the west.
(142) The sun came and went, thunder clouds growling and swirling up the valley.
(143) Suddenly we nearly jumped out of our skins as there was an incredible clap of thunder.
(144) For two years she heard nothing at all and then she heard close thunder crawling up the stairs.
(145) The thunder seemed to shake the foundations of the building.
(146) The overwhelming blackness, the cracking peals of thunder and the piercing flash and hiss of forked lightning.
(147) She then literally jumped in her seat as a huge peal of thunder crashed directly overhead.
(148) The thunder of the engines dropped to a muted roar, then a gentle hiss, then died into silence.
(149) Lightning played across the front almost continually, and thunder rolled over the catamaran.
(150) Suddenly there was a terrible crash of thunder, and the branch of a tree fell on to the roof.
More similar words: under, plunder, founder, undergo, under way, underway, fall under, undercut, come under, undermine, undertake, understand, underlying, underneath, undertaking, under control, undergraduate, misunderstanding, hundred, wander, render, ponder, tender, sender, gender, hinder, commander, offender, defender, cylinder.