ぐっと

1. 1suddenly ; at once ; in one go ; with a jerk ; with a gulp Translated by Jiyomi
2. 2considerably ; very much ; a lot Translated by Jiyomi
3. 3firmly ; with an effort ; tightly ; exerting pressure Translated by Jiyomi
4. 4completely (e.g. at a loss) Translated by Jiyomi
5. 5deeply (e.g. moved) Translated by Jiyomi

Other writings and readings

JMdict entry 1004080. Source and licence.