2 VERB If something grumbles , it makes a low continuous sound. [LITERARY ] □ [V adv/prep] It was quiet now, the thunder had grumbled away to the west. □ [V -ing] The dogs made a noise, a rough, grumbling sound. [Also V ] ● N‑SING Grumble is also a noun. □ [+ of ] One could often hear, far to the east, the grumble of guns.
grumpy /grʌ mpi/ (grumpier , grumpiest ) ADJ If you say that someone is grumpy , you mean that they are bad-tempered and miserable. □ Some folk think I'm a grumpy old man. ● grumpi|ly ADV [ADV with v] □ 'I know, I know,' said Ken, grumpily, without looking up.
grunge /grʌ ndʒ/
1 N‑UNCOUNT [oft N n] Grunge is the name of a fashion and of a type of music. Grunge fashion involves wearing clothes which look old and untidy. Grunge music is played on guitars and is very loud.
2 N‑UNCOUNT Grunge is dirt. [AM , INFORMAL ] ● grungy ADJ □ …grungy motel rooms.
grunt /grʌ nt/ (grunts , grunting , grunted )
1 VERB If you grunt , you make a low sound, especially because you are annoyed or not interested in something. □ [V ] The driver grunted, convinced that Michael was crazy. □ [V with quote] 'Rubbish,' I grunted. □ [V n] He grunted his thanks. ● N‑COUNT Grunt is also a noun. □ [+ of ] Their replies were no more than grunts of acknowledgement.
2 VERB When an animal grunts , it makes a low rough noise. □ [V ] …the sound of a pig grunting.
GSM /dʒi ː es e m/ N‑UNCOUNT GSM is a digital mobile telephone system, used across Europe and in other parts of the world. GSM is an abbreviation for 'global system for mobile communication'. □ There has been consistent growth in GSM mobile subscribers.
G-string /dʒiː str I ŋ/ (G-strings ) N‑COUNT A G-string is a narrow band of cloth that is worn between a person's legs to cover his or her sexual organs, and that is held up by a narrow string round the waist.
gua|ca|mo|le /gwɑːkəmoʊ li/ N‑UNCOUNT Guacamole is a cold food from Mexico made of crushed avocados and other ingredients such as tomatoes and chillis.
gua|no /gwɑː noʊ/ N‑UNCOUNT Guano is the faeces of sea birds and bats. It is used as a fertilizer.
guar|an|tee ◆◆◇ /gæ rəntiː / (guarantees , guaranteeing , guaranteed )
1 VERB If one thing guarantees another, the first is certain to cause the second thing to happen. □ [V n] Surplus resources alone do not guarantee growth. □ [V that] …a man whose fame guarantees that his calls will nearly always be returned. [Also V n n]
2 N‑COUNT [N that] Something that is a guarantee of something else makes it certain that it will happen or that it is true. □ [+ of ] A famous old name on a firm is not necessarily a guarantee of quality. □ There is still no guarantee that a formula could be found.
3 VERB If you guarantee something, you promise that it will definitely happen, or that you will do or provide it for someone. □ [V n] Most states guarantee the right to free and adequate education. □ [be V -ed n] All students are guaranteed campus accommodation for their first year. □ [V that] We guarantee that you will find a community with which to socialise. □ [V to-inf] We guarantee to refund your money if you are not delighted with your purchase. □ [V -ed] …a guaranteed income of £3.6 million. [Also V n n, V n that] ● N‑COUNT [oft N that] Guarantee is also a noun. □ The Editor can give no guarantee that they will fulfil their obligations. □ [+ of ] California's state Constitution includes a guarantee of privacy.
4 N‑COUNT [oft under N ] A guarantee is a written promise by a company to replace or repair a product free of charge if it has any faults within a particular time. □ Whatever a guarantee says, if something is faulty, you can still claim your rights from the shop. □ It was still under guarantee.
5 VERB If a company guarantees its product or work, they provide a guarantee for it. □ [V n] Some builders guarantee their work. □ [V n] All Dreamland's electric blankets are guaranteed for three years.
6 N‑COUNT A guarantee is money or something valuable which you give to someone to show that you will do what you have promised. □ [+ of ] They had to leave a deposit as a guarantee of returning to do their military service.
guar|an|teed /gæ rəntiː d/
1 ADJ [v-link ADJ , usu ADJ to-inf] If you say that something is guaranteed to happen, you mean that you are certain that it will happen. □ Reports of this kind are guaranteed to cause anxiety. □ It's guaranteed that my colleagues think I'm deranged. □ Success is not guaranteed.
2 → see also guarantee
guar|an|tor /gæ rəntɔː r / (guarantors ) N‑COUNT A guarantor is a person who gives a guarantee or who is bound by one. [LEGAL ]
guard ◆◆◇ /gɑː r d/ (guards , guarding , guarded )
1 VERB If you guard a place, person, or object, you stand near them in order to watch and protect them. □ [V n] Gunmen guarded homes near the cemetery with shotguns. □ [V -ed] …the heavily guarded courtroom.
2 VERB If you guard someone, you watch them and keep them in a particular place to stop them from escaping. □ [V n] Marines with rifles guarded them. □ [be V -ed + by ] He is being guarded by a platoon of police.