imply

importance

important

impose

impossible

impress

impression

impressive

improve

improvement

in

incentive

incident

incline

include

incorporate

increase

indeed

independence

independent

index

indicate

indication

indispensable

individual

indoor

indoors

induce

industrial

inevitable

infect

infection

infectious

infer

influence

influential

inform

information

inherent

inherit

inhibit

initial

initiate

initiative

injure

injury

innocent

innovation

input

inquire/enquire

inquiry/enquiry

insect

insert

inside

insight

insist

inspect

inspiration

inspire

instance

instant

instead

instinct

institute

institution

instruct

instruction

insult

insurance

insure

integral

integrate

integrity

intelligence

intelligent

intend

intense

intention

interact

interest

interesting

interfere

intermediate

internal

international

interpret

interrupt

interval

intervene

into

intrinsic

introduce

introduction

invent

invention

invest

investigate

investment

invitation

invite

involve

inward

irrespective

isolate

issue

J

jealous

job

join

joint

joke

journal

joy

judg(e)ment

judge

jump

just

justice

justification

justify

K

keen

keep

kick

kill

kind

kindness

kiss

kneel

knock

know

knowledge

L

label

labo(u)r

lack

ladder

lag

land

large

last

late

lately

latter

laugh

launch

law

lay

lazy

lead

lean

learn

least

leave

lecture

left

legal

lend

length

less

lesson

let

level

liberty

lie

life

lift

light

like

likelihood

likely

likewise

limb

limit

link

list

listen

little

live

load

loan

local

locate

lock

logic

logical

lonely

long

look

loom

loose

lose

loss

lot

loud

love

low

lower

loyal

loyalty

luck

lucky

M

mad

magic

mail

main

maintain

majority

make

male

manage

manifest

manipulate

manner