HASTE, HURRY, SPEED, EXPEDITION, DISPATCH mean quickness in movement or action.

HASTE applies to personal action and implies urgency and precipitancy and often rashness.

e.g. marry in haste

HURRY often has a strong suggestion of agitated bustle or confusion.

e.g. in the hurry of departure she forgot her toothbrush

SPEED suggests swift efficiency in movement or action.

e.g. exercises to increase your reading speed

EXPEDITION and DISPATCH both imply speed and efficiency in handling affairs but EXPEDITION stresses ease or efficiency of performance and DISPATCH stresses promptness in concluding matters.

e.g. the case came to trial with expedition

e.g. paid bills with dispatch

source: [遠征隊｜無料GIF画像検索 GIFMAGAZINE 3097238]

1. a journey or voyage undertaken by a group of people with a particular purpose, especially that of exploration, scientific research, or war:

«…への» 遠征, 探検; 討伐遠征 «to» (!通例危険な場所や訪れたことのない場所へグループで行くことをいう)

e.g. an expedition to the jungles of the Orinoco.

the people involved in an expedition:

探検隊, 遠征隊

e.g. many of the expedition have passed rigorous courses.

informal a short trip made for a particular purpose:

｟しばしばおどけて｠ (ある目的を持った)小旅行, ちょっと出かけること, お出かけ(trip)

e.g. a shopping expedition.

2. formal promptness or speed in doing something:

(事を処理する)手早さ, 迅速さ(promptness)

e.g. the landlord shall remedy the defects with all possible expedition.

late Middle English: via Old French from Latin expeditio(n-), from expedire ‘extricate’ (see expedite). Early senses included ‘prompt supply of something’ and ‘setting out with aggressive intent’. The notions of ‘speed’ and ‘purpose’ are retained in current senses. expedition (sense 1) dates from the late 16th century.